1. Recommendations for status assessment of vitamin B6.;Leklem,1980
2. Plasma pyridoxal-5′-phosphate level as risk index for coronary artery disease;Serfontein;Atherosclerosis,1985
3. Lack of relationship between plasma pyridoxal phosphate levels and ischaemic heart disease;Rossouw;S. Afr. Med. J.,1985
4. Coronary artery disease: the dimensions of the South African dilemma;Brink;Trans. Coll. Med. S. Afr.,1981
5. The epidemiology of ischaemic heart disease in the different ethnic populations in Johannesburg;Walker;S. Afr. Med. J.,1980