Pneumoconiosis in chromite miners in South Africa Authors: Sluis-Cremer GK, Du Toit RSJ. Source: British Journal of Industrial Medicine. 1968; 25:63-67. Babalwa Jekwa2019-04-11T00:03:22+02:00Dec 31st, 1968| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail