[1] Kilimanjaro Christian Med Univ Coll, Fac Nursing, POB 2240, Moshi, Kilimanjaro, Tanzania
[2] Catholic Univ Hlth & Allied Sci, Dept Clin Nursing, POB 1464, Mwanza, Tanzania
[3] Muhimbili Univ Hlth & Allied Sci, Dept Clin Nursing, POB 65004, Dar Es Salaam, Tanzania
[4] Univ Galway, Hlth Promot Res Ctr, Univ Rd, Galway H91 TK33, Ireland
[5] Muhimbili Natl Hosp, POB 65000, Dar Es Salaam, Tanzania
[6] Univ South Eastern Norway, Dept Nursing and Hlth Sci, Kjolnes Ring 56, N-3918 Porsgrunn, Norway
[7] Minist Hlth, Dept Nursing & Midwifery Serv, POB 743, Dodoma, Tanzania
[8] Hanze Univ Appl Sci, Sch Nursing, Groningen, Netherlands
[9] Univ Med Ctr Groningen, Dept Hlth Sci, Global Hlth Unit, Hanzepl 1, NL-9700 RB Groningen, Netherlands