[1] Kenya Govt Med Res Ctr, Wellcome Trust Res Programme, Publ Hlth Res, Nairobi 00100, Kenya
[2] Aga Khan Univ, Sch Nursing & Midwifery East Africa, Nursing & Midwifery, Nairobi, Kenya
[3] KEMRI Wellcome Trust Res Programme, Publ Hlth Res, Nairobi, Kenya
[4] Bill & Melinda Gates Fdn, Global Hlth, Seattle, WA USA
[5] Natl Nurses Assoc Kenya, Nairobi, Kenya
[6] Nursing Council Kenya, Registrat & Licensing, Nairobi, Kenya
[7] Univ Technol Sydney, Nursing & Midwifery, Sydney, NSW, Australia
[8] Griffith Univ, Sch Med, Fac Hlth, Gold Coast, Qld, Australia
[9] Univ Oxford, Dept Paediat, Oxford, England