Authors: Esterhuizen, TM Hnizdo, E Rees, D Lalloo, UG Kielkowski, D van Schalkwyk, EM White, N Smith, FCA Hoggins, B Curtis, T

Citation: Tm. Esterhuizen et al., Occupational respiratory diseases in South Africa - Results from SORDSA, 1997-1999, S AFR MED J, 91(6), 2001, pp. 502-508