{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T12:20:29Z","timestamp":1791030029852,"version":"4.1.0"},"reference-count":14,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2005,6,4]],"date-time":"2005-06-04T00:00:00Z","timestamp":1117843200000},"content-version":"vor","delay-in-days":6456,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am. J. Med. Genet."],"published-print":{"date-parts":[[1987,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Reproductive histories and chromosomes of spontaneous abortions were studied by segregation analysis in 1890 sibships ascertained through a cytogenetically studied abortion. Normal karyotypes are associated with recurrent abortion. Among abnormal karyotypes, trisomy has an elevated recurrence risk even after adjustment through a liability indicator for maternal age. Possible mechanisms and conflicting evidence in the literature on trisomy are discussed. None of these differences in recurrence risk is large enough to play a significant numerical role in genetic counseling.<\/jats:p>","DOI":"10.1002\/ajmg.1320280213","type":"journal-article","created":{"date-parts":[[2005,6,11]],"date-time":"2005-06-11T13:26:37Z","timestamp":1118496397000},"page":"353-360","source":"Crossref","is-referenced-by-count":18,"title":["Chromosome anomalies as predictors of recurrence risk for spontaneous abortion"],"prefix":"10.1002","volume":"28","author":[{"given":"N. 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