Health risks among white South African goldminers – dust, smoking and chronic obstructive pulmonary disease Author: Hnizdo E. Source: S Afr Med J. 1992; 81:512-517. Babalwa Jekwa2019-04-04T12:10:28+02:00Dec 31st, 1992| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail