1. African vital statistics—a black hole?;Botha;S. Afr. Med. J.,1985
2. Life after death—mortality statistics and the public health;Kielkowski;S. Afr. Med. J.,1989
3. Peering into the black hole—the quality of Black mortality data in Port Elizabeth and the rest of South Africa;van der Merwe;S. Afr. Med. J.,1991
4. Racial and Ethnic Differences in Disease;Polednak,1989
5. The use of cause-of-death statistics for health situation assessment: national and international experiences;Ruzicka;Wld Hlth Stat. Q.,1990