S. van der Walt

A systematic review of counselling for HIV testing of pregnant women.

H. Klopper, K. Minnie, S. van der Walt, 2009, Journal of clinical nursing.

Sputum colour as a marker for bacteria in acute exacerbations of COPD: protocol for a systematic review and meta-analysis

A. Hohlfeld, E. Ochodo, R. V. van Zyl-Smit, 2021, Systematic Reviews.