1. From the Department of Anatomical Pathology, School of Pathology, University of the Witwatersrand, and the South African Institute for Medical Research, Johannesburg, Republic of South Africa (Drs Muc and Grayson). Dr Grobbelaar is a part-time consultant in obstetrics and gynecology, Yoosuff Dadoo and Leratong Hospitals, Krugersdorp, South Africa, and a full-time consultant in private practice at