Various nouns have been used in the past to describe the Black races of South Africa and these terms will be used interchangeably in the text. They include "Bantu, African, Negro and Black." Although the currently recommended term is that of "Blacks of South Africa," many articles have been published in the Medical literature referring to Bantu, e. g., "Bantu Siderosis," and other articles have appeared referring to African, e. g., "African Cardiomyopathy." The material for this study was derived from the pathology laboratory at Barag wanath Hospital (2,500 beds) which serves the town of...