Cochrane column.
Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa. E-mail: charlesw@sun.ac.za. Website: www.sun.ac.za/cebhc.
Taryn
T
Young
Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa. E-mail: charlesw@sun.ac.za. Website: www.sun.ac.za/cebhc.
Charles S
CS
Wiysonge
Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa. E-mail: anelschoonees@sun.ac.za summarized this Cochrane Review.
Anel
A
Schoonees
Health Economics Unit, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa. Email: maylene.shungking@uct.ac.za.
Maylene
M
Shung King
Institute of Food Technology and Nutrition (INTA), University of Chile, Chile. E-mail: jkain@inta.uchile.cl.
Ricardo
R
Uauy
Institute of Food Technology and Nutrition (INTA), University of Chile, Chile. E-mail: jkain@inta.uchile.cl.
Juliana
J
Kain