[1] Kwame Nkrumah Univ Sci & Technol, Dept Populat & Family Hlth, Kumasi, Ghana
[2] Kwame Nkrumah Univ Sci & Technol, Dept Appl & Theoret Biol, Kumasi, Ghana
[3] SDA Nursing & Midwifery Training Coll, Kumasi, Ghana
[4] Korle Bu Teaching Hosp, Dept Surg, Biostat Unit, Accra, Ghana
[5] Komfo Anokye Teaching Hosp, Dept Publ Hlth, Kumasi, Ghana
[6] Komfo Anokye Teaching Hosp, Dept Obstet & Gynecol, Kumasi, Ghana
[7] Kwame Nkrumah Univ Sci & Technol, Dept Obstet & Gynecol, Kumasi, Ghana
[8] Kwame Nkrumah Univ Sci & Technol, Dept Med, Kumasi, Ghana
[9] Kwame Nkrumah Univ Sci & Technol, Dept Physiol, Kumasi, Ghana