The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.
Clinical Predictors of Ketamine Response in Treatment-Resistant Major Depression
Open accessAbstract
OBJECTIVE: The N-methyl-D-aspartate receptor antagonist ketamine has rapid antidepressant effects in treatment-resistant major depressive disorder (MDD) and bipolar depression. Clinical predictors may identify those more likely to benefit from ketamine within clinically heterogeneous populations. METHOD: Data were analyzed from 4 studies of treatment-resistant inpatients with DSM-IV-TR-diagnosed MDD or bipolar I or II depression. Patients who were currently experiencing a moderate-to-severe major depressive episode were enrolled between November 2004 and March 2013. All subjects received a single subanesthetic (0.5 mg/kg) ketamine infusion over 40 minutes. Patients were analyzed at the 230-minute postinfusion time point (n = 108), at day 1 (n = 82), and at day 7 (n = 71). Univariate Pearson correlations were performed for each variable with percent change from baseline in the 17-item Hamilton Depression Rating Scale (HDRS). Multivariate linear regression was then conducted for statistically significant predictors (P ≤ .05, 2-tailed). RESULTS: Higher body mass index correlated with greater HDRS improvement at 230 minutes (standardized β = -0.30, P = .004) and at day 1 (standardized β = -0.37, P = .001), but not at day 7 (standardized β = -0.18, P = .10). Family history of an alcohol use disorder in a first-degree relative was associated with greater HDRS improvement at day 1 (standardized β = -0.27, P = .014) and day 7 (standardized β = -0.41, P < .001). No prior history of suicide attempt(s) was associated with greater improvement only at day 7 (standardized β = 0.28, P = .01). The overall statistical model explained 13%, 23%, and 36% of HDRS percent change variance at 230 minutes, day 1, and day 7, respectively. CONCLUSIONS: Despite its post hoc nature, this study identified several clinical correlates of ketamine's rapid and durable antidepressant effects. Further investigation of these relationships is critical for individualized treatment of depression.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Elevated body mass index (BMI) has been found to be a predictor of response to ketamine,196 but in another study197 elevated BMI was not correlated with ketamine response, and presence of metabolic syndrome was negatively correlated with ketamine response.”
From Ketamine as an antidepressant: Overview of its mechanisms of action and potential predictive biomarkers (2020) · cites this paper as [196]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Trivedi, M. H., Rush, A. J., Wisniewski, S. R., Nierenberg, A. A., Warden, D., Ritz, L., Norquist, G., Howland, R. H., Lebowitz, B., McGrath, P. J., et al. (2006) · American Journal of Psychiatry · doi:10.1176/appi.ajp.163.1.28 · Cited by 3,879
A randomized trial of an N-methyl-D-aspartate antagonist in treatment-resistant major depression.
Zarate, C. A., Singh, J. B., Carlson, P. J., Brutsche, N. E., Ameli, R., Luckenbaugh, D. A., Charney, D. S., & Manji, H. K. (2006) · Archives of General Psychiatry · doi:10.1001/archpsyc.63.8.856 · Cited by 3,766
Self-citationKrystal, J. H. (1994) · Archives of General Psychiatry · doi:10.1001/archpsyc.1994.03950030035004 · Cited by 3,330
mTOR-Dependent Synapse Formation Underlies the Rapid Antidepressant Effects of NMDA Antagonists
Li, N., Lee, B., Liu, R.-J., Banasr, M., Dwyer, J. M., Iwata, M., Li, X.-Y., Aghajanian, G., & Duman, R. S. (2010) · Science · doi:10.1126/science.1190287 · Cited by 2,881
Moghaddam, B., Adams, B., Verma, A., & Daly, D. (1997) · The Journal of Neuroscience · doi:10.1523/jneurosci.17-08-02921.1997 · Cited by 1,793
Maeng, S., Zarate, C. A., Du, J., Schloesser, R. J., McCammon, J., Chen, G., & Manji, H. K. (2008) · Biological Psychiatry · doi:10.1016/j.biopsych.2007.05.028 · Cited by 1,103
Self-citationLi, N., Liu, R.-J., Dwyer, J. M., Banasr, M., Lee, B., Son, H., Li, X.-Y., Aghajanian, G., & Duman, R. S. (2011) · Biological Psychiatry · doi:10.1016/j.biopsych.2010.12.015 · Cited by 1,082
Diazgranados, N., Ibrahim, L., Brutsche, N. E., Newberg, A., Kronstein, P., Khalife, S., Kammerer, W. A., Quezado, Z., Luckenbaugh, D. A., Salvadore, G., et al. (2010) · Archives of General Psychiatry · doi:10.1001/archgenpsychiatry.2010.90 · Cited by 963
Self-citationZarate, C. A., Brutsche, N. E., Ibrahim, L., Franco-Chaves, J., Diazgranados, N., Cravchik, A., Selter, J., Marquardt, C. A., Liberty, V., & Luckenbaugh, D. A. (2012) · Biological Psychiatry · doi:10.1016/j.biopsych.2011.12.010 · Cited by 811
Self-citationSignaling pathways underlying the rapid antidepressant actions of ketamine
Duman, R. S., Li, N., Liu, R.-J., Duric, V., & Aghajanian, G. (2012) · Neuropharmacology · doi:10.1016/j.neuropharm.2011.08.044 · Cited by 537
Flagged first, then by citations
Cited by
Sorted by citations
Items 101–165 of 165
Núñez, N. A., Joseph, B., Pahwa, M., Seshadri, A., Prokop, L. J., Kung, S., Schak, K. M., Voort, J. L. V., Frye, M. A., & Singh, B. (2025) · Psychopharmacology Bulletin · doi:10.64719/pb.4376 · Cited by 9
Ketamine Use for Suicidal Ideation in the General Hospital: Case Report and Short Review
Vulser, H., Vulser, C., RIEUTORD, M., Passeron, A., LEFEBVRE, D., BAUP, E., Seigneurie, A.-S., Thauvin, I., Limosin, F., & Lemogne, C. (2018) · Journal of Psychiatric Practice · doi:10.1097/pra.0000000000000282 · Cited by 9
Jordan, W., Siegel, R., Kumar, R., & Javitt, J. C. (2023) · International Journal of Toxicology · doi:10.1177/10915818231176971 · Cited by 8
Is Depressive Rumination Rational?
Lane, T. J., & Northoff, G. (2017) · Elsevier eBooks · doi:10.1016/b978-0-12-804600-5.00007-6 · Cited by 8
Suicide prevention and ketamine: insights from computational modeling
Charlton, C. E., Karvelis, P., McIntyre, R. S., & Diaconescu, A. O. (2023) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2023.1214018 · Cited by 7
Familial Alcoholism Risk and the Ratio of Stimulant to Sedative Effects of Ketamine
Yoon, G., Pittman, B. P., Limoncelli, D., Krystal, J. H., & Petrakis, I. L. (2015) · Biological Psychiatry · doi:10.1016/j.biopsych.2015.09.006 · Cited by 7
Intramuscular Ketamine to Treat Major Depressive Disorder: A Case Series of Forty Patients
Bonnett, C. J., Jain, R., Ross, C. N., Wallington, D. A., & Schock, T. R. (2021) · Journal of Psychiatry and Mental Health · doi:10.16966/2474-7769.145 · Cited by 7
Pascual-Antón, R., Blasco‐Serra, A., Muñoz‐Moreno, E., Pilar-Cuéllar, F., Garro-Martínez, E., Florensa-Zanuy, E., López-Gil, X., Campa, V. M., Sòria, G., & Adell, A. (2021) · Brain Structure and Function · doi:10.1007/s00429-021-02354-0 · Cited by 6
Beaudequin, D. A., Can, A., Jones, M., Yang, C., Scherman, J. K., Dutton, M., Schwenn, P., Gallay, C. C., Jensen, E., Hermens, D. F., et al. (2021) · Psychiatry Research · doi:10.1016/j.psychres.2021.114212 · Cited by 6
Ohtani, Y., Tani, H., Honda, S., Nomoto‐Takahashi, K., Yatomi, T., Yonezawa, K., Tomiyama, S., Nagai, N., Kusudo, K., Moriyama, S., et al. (2025) · Journal of Affective Disorders · doi:10.1016/j.jad.2025.04.165 · Cited by 5
The quest for optimal ketamine dosing formula in treatment-resistant major depressive disorder
Kwaśna, J., Cubała, W. J., Kwaśny, A., & Wilkowska, A. (2024) · Pharmacological Reports · doi:10.1007/s43440-024-00637-x · Cited by 5
Ketamine for Major Depressive Disorder
Costi, S. (2023) · Current topics in behavioral neurosciences · doi:10.1007/7854_2023_453 · Cited by 5
Concurrent benzodiazepines undermine the antidepressant effect of ketamine
Andrashko, V., Novák, T., Horáček, J., Klírová, M., & Brunovský, M. (2019) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2018.11.592 · Cited by 5
Lowe, D. J. E., Müller, D. J., & George, T. P. (2020) · Current Topics in Medicinal Chemistry · doi:10.2174/1568026620666200423094423 · Cited by 5
Chitty, K. M., Lagopoulos, J., Hickie, I. B., & Hermens, D. F. (2015) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2015.07.004 · Cited by 5
Tan, J.-Q., Gu, L.-M., Zhou, Y., Wang, C., Lan, X., Zheng, W., & Ning, Y. (2025) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2025.1498952 · Cited by 4
Wade, B., Pindale, R., Luccarelli, J., Li, S., Meisner, R. C., Seiner, S. J., Camprodon, J. A., & Henry, M. (2025) · npj Digital Medicine · doi:10.1038/s41746-025-01523-3 · Cited by 4
Ansari, M., Rhee, T. G., Santucci, M. C., & Nikayin, S. (2025) · Journal of Affective Disorders · doi:10.1016/j.jad.2025.03.198 · Cited by 4
Massaneda‐Tuneu, C., Martin, D. M., Glozier, N., Bayes, A. J., Cao, T. V., Thornton, N. L. R., Brettell, L., Antoniou, S., Barreiros, A. R., Flynn, M., et al. (2025) · Journal of Affective Disorders · doi:10.1016/j.jad.2025.120192 · Cited by 4
Anti-suicidal effects of IV ketamine in a real-world setting
O’Brien, B., Lee, J., Kim, S., Nandra, G. S., Pannu, P., Tamman, A. J. F., Amarneh, D. Y., Swann, A. C., Murphy, N., Averill, L. A., et al. (2023) · Psychiatry Research · doi:10.1016/j.psychres.2023.115604 · Cited by 4
Murata, S., Madaj, Z., Capan, C. D., Sheldon, R. D., El‐Mallakh, R. S., Parikh, S. V., Bobo, W. V., Goes, F. S., Wolkowitz, O. M., Voort, J. L. V., et al. (2025) · Biological Psychiatry Global Open Science · doi:10.1016/j.bpsgos.2025.100503 · Cited by 4
Ketamine as a Bridge Therapy: Reducing Acute Suicidality in Hospital Settings
Lie, P. E., Lie, T., Nguyen, M., & Lie, D. Y. C. (2026) · Healthcare · doi:10.3390/healthcare14050634 · Cited by 3
Understanding the variability in ketamine’s efficacy in managing treatment-resistant depression
Bryan, J. (2024) · Discover Psychology · doi:10.1007/s44202-024-00277-5 · Cited by 3
Linkovski, O., Wheaton, M. G., Zwerling, J., Odgerel, Z., van Roessel, P., Filippou-Frye, M., Lombardi, A., Wright, B., Steinman, S. A., Simpson, H. B., et al. (2018) · Journal of Clinical Psychopharmacology · doi:10.1097/jcp.0000000000000994 · Cited by 3
Twohig, P. A., & Huckfeldt, V. (2016) · International Journal of Medical Students · doi:10.5195/ijms.2016.153 · Cited by 3
Cohen, R., Bastos, J., Cunha, C., Marguilho, M., Sancho, A. V., Silva, M. J. M., King, F., & Castro-Rodrigues, P. (2026) · General Hospital Psychiatry · doi:10.1016/j.genhosppsych.2026.02.001 · Cited by 3
Heterogeneous trajectory of depressive symptoms after repeated subcutaneous esketamine injections
Barbosa, M. G., Sarin, L. M., Tuena, M. A., Sant, L. C. D., Nakahira, C., Magalhães, E. T. P., Fava, V. A. R., Delfino, R. S., Steglich, M. S., Puertas, C. B., et al. (2020) · Journal of Affective Disorders Reports · doi:10.1016/j.jadr.2020.100053 · Cited by 2
Arora, S. K., Praveen, A. P., Subu, O., Suhas, S., Gowda, G. S., Reddi, V. S. K., & John, J. P. (2025) · Asian Journal of Psychiatry · doi:10.1016/j.ajp.2025.104383 · Cited by 2
Słupski, J., Mechlińska, A., Włodarczyk, A., Kwaśny, A., Szarmach, J., Słupska, A., & Cubała, W. J. (2025) · Frontiers in Nutrition · doi:10.3389/fnut.2025.1616859 · Cited by 3
Grabski, M., & Morgan, C. J. A. (2022) · Elsevier eBooks · doi:10.1016/b978-0-323-91497-0.00236-8 · Cited by 2
Wade, B., Pindale, R., Camprodon, J. A., Luccarelli, J., Li, S., Meisner, R. C., Seiner, S. J., & Henry, M. (2023) · Research Square · doi:10.21203/rs.3.rs-3682009/v1 · Cited by 2
Peters, E. M., Halpape, K., Cheveldae, I., Jacobson, P., & Wanson, A. (2024) · Personalized Medicine in Psychiatry · doi:10.1016/j.pmip.2024.100119 · Cited by 2
Das, K., Sen, J., & Borode, A. S. (2024) · Cureus · doi:10.7759/cureus.69261 · Cited by 2
Uyar, B., & Güneş, M. (2024) · Postgraduate Medical Journal · doi:10.1093/postmj/qgae142 · Cited by 1
History of episodic heavy alcohol use predicts antidepressant effectiveness of ketamine
Raquib, A. R., Nguyen, V. T., Brown, J. C., Sedgewick, A. E., Seiner, S. J., Taylor, J. J., Siddiqi, S., & Meisner, R. C. (2025) · Psychopharmacology · doi:10.1007/s00213-025-06918-4 · Cited by 1
Ketamine dosing formula in treatment-resistant bipolar depression
Kwaśny, A., Cubała, W. J., & Wilkowska, A. (2025) · Therapeutic Advances in Psychopharmacology · doi:10.1177/20451253251392817 · Cited by 1
Azadbakht, A. A., Mashayekhi‐Sardoo, H., & Baghcheghi, Y. (2025) · Neurochemical Research · doi:10.1007/s11064-025-04619-0 · Cited by 3
Kachlik, Z., Cubała, W. J., Walaszek, M., Pastuszak, M., Pastuszak, K., & Kwaśny, A. (2026) · Therapeutic Advances in Psychopharmacology · doi:10.1177/20451253251412629 · Cited by 1
Syed, O. A., Sobolenko, V., Nestor, S. M., Husain, M. I., Lipsman, N., Alam, F., & Giacobbe, P. (2026) · CNS Drugs · doi:10.1007/s40263-026-01296-7 · Cited by 1
Kynurenine pathway profiles as markers of ketamine response in treatment-resistant depression
Pedraz-Petrozzi, B., Marszałek‐Grabska, M., Fornal, E., Wielgosz, A., Stachniuk, A., Marzec, P., Neumann, E., Riedinger, E., Gilles, M., Gründer, G., et al. (2026) · Brain Behavior and Immunity · doi:10.1016/j.bbi.2026.106889 · Cited by 1
Novel Therapeutics in Bipolar Disorder
da Costa, S. C., Machado‐Vieira, R., & Soares, J. C. (2018) · Current Treatment Options in Psychiatry · doi:10.1007/s40501-018-0140-6 · Cited by 1
Self-citationA Pain Physician and Anesthesiologist’s Perspective on Ketamine for Treatment-Resistant Depression
Gatewood, L. E., Gorlin, A. W., Bailey, C. H., Barsoum, G., & Porter, S. B. (2023) · SN Comprehensive Clinical Medicine · doi:10.1007/s42399-023-01439-7 · Cited by 1
Davis, M. T., Asch, R., Weiss, E. R., Wagner, A., Fineberg, S. K., Nabulsi, N., Matuskey, D., Carson, R. E., & Esterlis, I. (2024) · Biological Psychiatry Cognitive Neuroscience and Neuroimaging · doi:10.1016/j.bpsc.2024.11.014 · Cited by 1
Schoretsanitis, G., & Hasler, G. (2015) · Swiss Medical Forum ‒ Schweizerisches Medizin-Forum · doi:10.4414/smf.2015.02420 · Cited by 1
Predictable Biomarkers for Rapid-Acting Antidepressant Response to Ketamine
Tan, Y., & Hashimoto, K. (2021) · Contemporary clinical neuroscience · doi:10.1007/978-3-030-79790-4_3 · Cited by 1
Ketamine and Other Glutamate Receptor Antagonists As Fast-Actin
Chen, M., Su, T., & Tsai, S. (2022) · Neuromethods · doi:10.1007/978-1-0716-2083-0_19 · Cited by 1
Ketamine in Psychiatric Disorders
Danyeli, L. V., Götting, F. N., Şen, Z. D., Li, M., & Walter, M. (2022) · Springer eBooks · doi:10.1007/978-3-030-62059-2_420 · Cited by 1
da Costa, J. P. D. O. M., Bisol, L. W., & Souza, F. G. D. M. E. (2021) · Journal of Psychopharmacology · doi:10.1177/02698811211035392 · Cited by 1
Andrade, C. (2017) · The Journal of Clinical Psychiatry · doi:10.4088/jcp.17lr11789a
Lawford‐Smith, H. (2015)
Ketamine: The Glutamatergic Antidepressant and Its Efficacy
Tracy, D. K., Caddy, C., & Shergill, S. S. (2016) · Springer eBooks · doi:10.1007/978-81-322-2803-5_41
Kétamine comme option thérapeutique
Schoretsanitis, G., & Hasler, G. (2015) · Forum Médical Suisse ‒ Swiss Medical Forum · doi:10.4414/fms.2015.02420
Ketamine in Psychiatric Disorders
Danyeli, L. V., Götting, F. N., Şen, Z. D., Li, M., & Walter, M. (2021) · Springer eBooks · doi:10.1007/978-3-319-56015-1_420-1 · Cited by 1
Ketamine for Treatment-Resistant Depression
Madhloom, R. S. (2021) · Mustansiriya Medical Journal · doi:10.4103/mj.mj_15_21
Schnell wirksame Antidepressiva
Şen, Z. D., Danyeli, L. V., & Walter, M. (2022) · Springer eBooks · doi:10.1007/978-3-662-65734-8_10
Predicting non-response to ketamine for depression: a symptom-level analysis of real-world dataPreprint
Miller, E. A., Afshar, H. T., Mishra, J., & Ramanathan, D. (2023) · medRxiv · doi:10.1101/2023.07.03.23292094
REVOLUTIONIZING DEPRESSION TREATMENT: A PARADIGM SHIFT OF KETAMINE THERAPY – A SYSTEMATIC REVIEW
Kaushal, Y., Goyal, P., & Sehgal, A. (2024) · Asian Journal of Pharmaceutical and Clinical Research · doi:10.22159/ajpcr.2024v17i8.51360
Baltalı, S., Çiftçi, E., Baltalı, M., Haliloğlu, M., Ercan, A., Tünay, A., Çelik, Z., Bozay, B., & Toptaş, M. (2025) · BMC Women s Health · doi:10.1186/s12905-025-03920-y
Electroconvulsive Therapy Versus Ketamine in Suicidality: A Systematic Review of Randomized Trials
Grover, S., Naskar, C., & Niyogi, S. G. (2025) · Current Behavioral Neuroscience Reports · doi:10.1007/s40473-025-00311-3
Kwaśna, J., Kwaśny, A., Bychowski, M., Kwaśna, M., & Pastuszak, M. (2025) · Journal of Affective Disorders · doi:10.1016/j.jad.2025.120337
Pustay, D., Patel, V., Ulisse, K., & Aromin, J. T. (2026) · International Journal of Psychiatry in Clinical Practice · doi:10.1080/13651501.2026.2623198
Sympathetic activation but not dissociation linked to ketamine’s sustained antidepressant effect
Andrashko, V., Novak, T., Kopeček, M., Šuláková, A., Knop, V., & Horacek, J. (2026) · Therapeutic Advances in Psychopharmacology · doi:10.1177/20451253261419636
Breit, S. (2026) · Journal of Psychiatry and Brain Science · doi:10.20900/jpbs.20260006
Nomoto, K., Ohtani, Y., Yatomi, T., Yonezawa, K., Tomiyama, S., Nagai, N., Kusudo, K., Honda, S., Moriyama, S., Nakajima, S., et al. (2026) · Pharmacopsychiatry · doi:10.1055/a-2894-5681
Malewska-Kasprzak, M., Rybakowski, F., & Dmitrzak‐Węglarz, M. (2026) · CNS Spectrums · doi:10.1017/s1092852926101187
Metadata
- Authors
- Niciu, M. J., Luckenbaugh, D. A., Ionescu, D. F., Guevara, S., Machado-Vieira, R., Richards, E. M., Brutsche, N. E., Nolan, N. M., & Zarate, C. A.
- Affiliations
- National Institutes of Health (US)
- Venue
- The Journal of Clinical Psychiatry
- Publisher
- Physicians Postgraduate Press, Inc
- Published
- 2014-05-15
- Volume
- 75
- Issue
- 05
- Pages
- e417-e423
- ISSN
- 0160-6689 (ISSN-L)
- PMC
- PMC4310499
- OpenAlex
- W2005055479
- Cited by
- 165
- References
- 41
- Citations by year
- 2026: 10 · 2025: 15 · 2024: 13 · 2023: 12 · 2022: 12 · 2021: 21 · 2020: 21 · 2019: 7 · 2018: 12 · 2017: 8 · 2016: 10 · 2015: 16 · 2014: 7
- FWCI
- 9.96
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- The Journal of Clinical Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Alliance for Research on Schizophrenia and Depression
- National Institutes of Health (Z99 MH999999)
- National Institute of Mental Health
- Topics
- Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
- Health Sciences › Medicine › Psychiatry and Mental health › Electroconvulsive Therapy Studies
- Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
- Keywords
- ketamine, treatment-resistant depression, major depressive disorder, bipolar depression, antidepressant response, predictors of treatment response, body mass index, family history of alcoholism, suicide attempt history, NMDA receptor antagonists, rapid antidepressant effects, personalized treatment
- MeSH terms
- Adult, Bipolar Disorder, Major Depressive Disorder, Depressive Disorder, Major, Female, Follow-Up Studies, Humans, Infusions, Intravenous, Ketamine, Male, Middle Aged, Psychiatric Status Rating Scales, Severity of Illness Index, Time Factors, Body Mass Index, Receptors, N-Methyl-D-Aspartate, Treatment Outcome, Excitatory Amino Acid Antagonists, Depressive Disorder, Treatment-Resistant
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review