by von Dadelszen, P., Watson, R.W.G., Noorwali, F., Marshall, J.C., Parodo, J., Farine, D., Lye, S.J., Ritchie, J.W.K., Rotstein, O.D.
Published in American journal of obstetrics and gynecology (01.08.1999)

by Barlas, S, Al-Mobarak, M F, Shaheen, T A, El-Badawi, S F, Noorwali, F
Published in Annals of Saudi medicine (01.03.1996)