[1] Hubert Kairuki Mem Univ, Fac Nursing, Dept Maternal & Child Hlth, 322 Regent Estate,POB 65300, Dar Es Salaam 255, Tanzania
[2] Muhimbili Natl Hosp, Dept Internal Med, POB 65300, Dar Es Salaam, Tanzania
[3] African Acad Publ Hlth, Dept Qualitat Res, POB 79810, Dar Es Salaam, Tanzania
[4] Mbagala Rangi Tatu Hosp, Dept Care & Treatment, POB 45232, Dar Es Salaam, Tanzania
[5] Muhimbili Univ Hlth & Allied Sci, Sch Nursing, Dept Nursing Management, POB 65004, Dar Es Salaam, Tanzania
[6] Sch Publ Hlth & Social Sci, Dept Community Hlth, POB 65015, Dar Es Salaam, Tanzania
[7] Management & Dev Hlth, Dept Publ Hlth Evaluat, POB 79810, Dar Es Salaam, Tanzania