Problems of sample size and selection in analyses of pregnancy outcomes
Garn, S.M.; Ridella, S.A.; Smith, B.H.
American Journal of Obstetrics and Gynecology 147(7): 852-853
1983
ISSN/ISBN: 0002-9378 PMID: 6650621 DOI: 10.1016/0002-9378(83)90066-2Document Number: 400187
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