Ekosse G, de Jager L, van den Heever DJ. The occurrences of chest pains and frequent coughing among residents living within the Selebi Phikwe Ni-Cu mine area, Botswana. ajhs [Internet]. 2005 Nov. 16 [cited 2026 Sep. 4];12(1):37-48. Available from: https://www.ajol.info/index.php/ajhs/article/view/30799