F. Retief

Electrocardiographic and biochemical studies on marathon runners.

J. D. Marx, A. de Waal, G. Human, 1979, South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

Efficacy and tolerability of 20 mg pantoprazole versus 300 mg ranitidine in patients with mild reflux‐oesophagitis: a randomized, double‐blind, parallel, and multicentre study

S. O'keefe, T. Bethke, J. V. van Zyl, 2000, European Journal of Gastroenterology and Hepathology.