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«Resemblance in appearance and the equal environments assumption in twin studies of personality traits». Behavior Genetics. 6. ISSN0001-8244. PMID943160. doi:10.1007/bf01065677
Corson, S. L.; Dickey, R. P.; Gocial, B.; Batzer, F. R.; Eisenberg, E.; Huppert, L.; Maislin, G. (1989). «Outcome in 242 in vitro fertilization-embryo replacement or gamete intrafallopian transfer-induced pregnancies». Fertility and Sterility. 51 (4): 644–650. PMID2924931. doi:10.1016/S0015-0282(16)60614-3
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«Resemblance in appearance and the equal environments assumption in twin studies of personality traits». Behavior Genetics. 6. ISSN0001-8244. PMID943160. doi:10.1007/bf01065677
«The "Equal Environments Assumption" in MZ-DZ Twin Comparisons: an Untenable Premise of Psychiatric Genetics?». Acta Geneticae Medicae et Gemellologiae: Twin Research. 45. ISSN0001-5660. doi:10.1017/S0001566000000945
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