This was a study proposed to measure the immunotoxic effects of subterranean Gold Mines in South Africa.

1. Immunotoxic Effects of Silica Exposure in Gold Miners in South Africa Ahmed Ibrahim Dr. Marc Schenker Environmental Epidemiology December 06, 2007

2. Importance Background Objective Study Design Evaluation Questions

5. Objective Does silica exposure cause immunodeficiency in South African gold miners?

11. QUESTIONS