The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Do Medical Marijuana Laws Increase Marijuana Use? Replication Study and Extension
Open accessOverview
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.
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
How Much Should We Trust Differences-in-Differences Estimates?
Bertrand, M., Duflo, E., & Mullainathan, S. (2004) · The Quarterly Journal of Economics · doi:10.1162/003355304772839588 · Cited by 10,641
The Case-Crossover Design: A Method for Studying Transient Effects on the Risk of Acute Events
Maclure, M. (1991) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a115853 · Cited by 2,327
Cited by
Designing Difference in Difference Studies: Best Practices for Public Health Policy Research
Wing, C., Simon, K., & Bello-Gomez, R. A. (2018) · Annual Review of Public Health · doi:10.1146/annurev-publhealth-040617-013507 · Cited by 1,470
Cerdá, M., Mauro, C., Hamilton, A., Levy, N. S., Santaella-Tenorio, J., Hasin, D., Wall, M. M., Keyes, K. M., & Martins, S. S. (2020) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2019.3254 · Cited by 598
Medical Marijuana Laws, Traffic Fatalities, and Alcohol Consumption
Mark Anderson, D., Hansen, B., & Rees, D. I. (2013) · The Journal of Law and Economics · doi:10.1086/668812 · Cited by 409
Wen, H., Hockenberry, J. M., & Cummings, J. R. (2015) · Journal of Health Economics · doi:10.1016/j.jhealeco.2015.03.007 · Cited by 379
Evaluating the public health impacts of legalizing recreational cannabis use in the United States
Hall, W., & Lynskey, M. (2016) · Addiction · doi:10.1111/add.13428 · Cited by 357
Metadata
- Authors
- Harper, S., Strumpf, E. C., & Kaufman, J. S.
- Venue
- Annals of Epidemiology
- Publisher
- Elsevier BV
- Published
- 2012-03
- Volume
- 22
- Issue
- 3
- Pages
- 207-212
- ISSN
- 1047-2797 (ISSN-L)
- OpenAlex
- W2014622124
- Cited by
- 217
- References
- 2
- FWCI
- 14.87
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Do Medical Marijuana Laws Increase Marijuana Use? Replication Study and Extension. https://app.cochat.ai/papers/10.1016/j.annepidem.2011.12.002
- The paper
- Harper, S., Strumpf, E. C., & Kaufman, J. S. (2012). Do Medical Marijuana Laws Increase Marijuana Use? Replication Study and Extension. Annals of Epidemiology. https://doi.org/10.1016/j.annepidem.2011.12.002
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.