[1] Cent Hosp, Ctr Dev Best Practices Hlth, Yaounde, Cameroon
[2] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[3] St Josephs Healthcare Hamilton, Father Sean OSullivan Res Ctr, Biostat Unit, Hamilton, ON, Canada
[4] South African Med Res Council, Cochrane South Africa, Cape Town, South Africa
[5] Stellenbosch Univ, Fac Med & Hlth Sci, Div Clin Pharmacol, Cape Town, South Africa