A seasonal effect on pregnancy rates in an in vitro fertilization program.
Chamoun
D
D
University of Maryland School of Medicine, Department of Obstetrics and Gynecology, Baltimore 21201, USA.
Udoff
L
L
Scott
L
L
Magder
L
L
Adashi
E Y
EY
McClamrock
H D
HD
D005260:Female; D005307:Fertilization in Vitro / Q000592:standards*; D006801:Humans; D007030:Hypothalamo-Hypophyseal System / Q000502:physiology; D008027:Light; D008297:Male; D010053:Ovary / Q000502:physiology; D011247:Pregnancy; D018873:Pregnancy Rate; D012621:Seasons; D012727:Sex Characteristics; D013076:Sperm Count; D013696:Temperature