A Report of the work of the pneumoconiosis research unit Author: South African Pneumoconiosis Review. Number 6. 1970. Source: Medical Research Council. 1970; Jhb:1-32. Babalwa Jekwa2019-04-10T12:26:43+02:00Dec 31st, 1970| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail