Random controlled trials in perinatal medicine.
Hawkins
D F
DF
RPMS Institute of Obstetrics and Gynaecology, Hammersmith Hospital, London, U.K.
D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D010500:Perinatology / Q000379:methods*; D011247:Pregnancy; D012107:Research Design