The DOI matches its Crossref record.
WHERE HAVE ALL THE CONCEPTIONS GONE?
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.
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
Cited by
Genetic conflicts in human pregnancy
Haig, D. (1993) · The Quarterly Review of Biology · doi:10.1086/418300 · Cited by 1,253
“DECEMBER 1993 GENETIC CONFLICTS IN HUMAN PREGNANCY 507 C. J. Roberts and Lowe (1975) have estimated that 78 percent of human conceptions never come to term.”
BackgroundResultEarly embryonic mortality in women
Edmonds, D. K., Lindsay, K. S., Miller, J. F., Williamson, E., & Wood, P. J. (1982) · Fertility and Sterility · doi:10.1016/s0015-0282(16)46579-9 · Cited by 512
The window of embryo transfer and the efficiency of human conception in vitro
Navot, D., Scott, R. T., Droesch, K., Veeck, L. L., Liu, H.-C., & Rosenwaks, Z. (1991) · Fertility and Sterility · doi:10.1016/s0015-0282(16)54069-2 · Cited by 299
The effects of quinine and chloroquine antimalarial treatments in the first trimester of pregnancy
Mcgready, R., Thwai, K. L., Cho, T., Samuel, Looareesuwan, S., White, N. J., & Nosten, F. (2002) · Transactions of the Royal Society of Tropical Medicine and Hygiene · doi:10.1016/s0035-9203(02)90297-x · Cited by 73
Germline Modification and the Burden of Human Existence
HARRIS, J. (2016) · Cambridge Quarterly of Healthcare Ethics · doi:10.1017/s0963180115000237 · Cited by 44
Metadata
- Authors
- ROBERTS, C.
- Venue
- The Lancet
- Publisher
- Elsevier BV
- Published
- 1975-03
- Volume
- 305
- Issue
- 7905
- Pages
- 498-499
- ISSN
- 0099-5355 (ISSN-L)
- 0140-6736
- OpenAlex
- W2036738134
- Cited by
- 263
- References
- 0
- FWCI
- 8.74
- Type
- journal article
- Language
- en
- Open access
- closed
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 ›
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How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: WHERE HAVE ALL THE CONCEPTIONS GONE? https://app.cochat.ai/papers/10.1016/s0140-6736(75)92837-8
- The paper
- ROBERTS, C. (1975). WHERE HAVE ALL THE CONCEPTIONS GONE? The Lancet. https://doi.org/10.1016/s0140-6736(75)92837-8
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.
