An analysis of the reasons for non-participation of subjects referred for recruitment for the Inherited Factors in Pre-eclampsia study (IFPE Study). 37th Annual Scientific Sessions of the Sri Lanka College of Obstetricians and Gynaecologists. September 3-5, 2004. Colombo, Sri Lanka. (Abstracted in Sri Lanka Journal of Obstetrics and Gynaecology 2004,26(Suppl1): 28-29)