An insoluble fibrogenic factor in macrophages from guinea pigs exposed to silica Author: Kilroe-Smith TA, Webster I, Van Drimmelen M, Marasas L. Source: Environmental Research 6. 1973; no 3:298-305. Babalwa Jekwa2019-04-10T23:32:06+02:00Dec 31st, 1973| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail