Silica exposure, silicosis and lung cancer: A mortality study of South African gold miners Authors: Hnizdo E, Sluis-Cremer GK. Sources: Br J Ind Med. 1991; 48:53-60. Babalwa Jekwa2019-04-03T09:35:50+02:00Dec 31st, 1991| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail