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Sports Medicine (Auckland, N.Z.)|November 1, 1993
Gender verification in competitive sportsJ L Simpson, A Ljungqvist, A de la Chapelle, et al.
American Journal of Obstetrics and Gynecology|December 1, 1991
Fetal outcome among pregnancies in natural family planning acceptors: an international cohort studyJ L Simpson, R H Gray, J T Queenan, et al.
Human Reproduction (Oxford, England)|March 1, 1996
Infectious processes: an infrequent cause of first trimester spontaneous abortionsJ L Simpson, J L Mills, H Kim, et al.
Fertility and Sterility|July 1, 1996
Prospective study showing that antisperm antibodies are not associated with pregnancy lossesJ L Simpson, S A Carson, J L Mills, et al.
American Journal of Public Health|March 1, 1997
Adverse outcomes of planned and unplanned pregnancies among users of natural family planning: a prospective studyA Bitto, R H Gray, J L Simpson, et al.
Fetal Diagnosis and Therapy|July 1, 1994
Severity of abnormality influences decision to terminate pregnancies affected with fetal neural tube defectsC Grevengood, L P Shulman, J S Dungan, et al.
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