Measuring gestational age: an uncertain proposition.
Berg
A T
AT
Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut 06511.
Bracken
M B
MB
D001831:Body Temperature / Q000502:physiology; D005314:Embryonic and Fetal Development / Q000502:physiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D008598:Menstruation / Q000502:physiology; D010060:Ovulation / Q000502:physiology; D011247:Pregnancy; D016216:Ultrasonography, Prenatal