2 Christian Medical College, Vellore, Tamil Nadu, India (Dr Kuriakose).
3 US Satellite of Cochrane Pregnancy and Childbirth Group, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN (Drs Faysal and Haas).
4 US Satellite of Cochrane Pregnancy and Childbirth Group, Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN (Drs Faysal and Haas). Electronic address: dahaas@iupui.edu.