Ventilatory function in relation to mining experience and smoking in a random sample of miners and non-miners in a Witwatersrand town Authors: Sluis-Cremer GK, Walters LG, Sichel HS. Source: British Journal of Industrial Medicine. 1967; 24 no 1:13-25. Babalwa Jekwa2019-06-25T09:05:53+02:00Dec 31st, 1967| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail