A report of the work of the pneumoconiosis research unit Author: South African Pneumoconiosis Review. Number 5. 1969. Source: Medical Research Council. 1969; Jhb:1-68. Babalwa Jekwa2019-04-11T01:22:58+02:00Dec 31st, 1969| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail