[1] Nnamdi Azikiwe Univ, Dept Obstet & Gynaecol, Effect Care Res Unit, Awka, Nigeria
[2] Univ Nigeria, Inst Maternal & Child Hlth, Coll Med, Ituku Ozalla Campus, Nsukka, Nigeria
[3] Nnamdi Azikiwe Univ Teaching Hosp Nnewi, Dept Obstet & Gynaecol, Nnewi, Nigeria
[4] Univ Nigeria Ituku Ozalla, Coll Med, Dept Obstet & Gynaecol, Nsukka, Nigeria
[5] Nnamdi Azikiwe Univ, Dept Mental Hlth, Awka, Nigeria
[6] Havana Specialist Hosp, Dept Obstet & Gynecol, Lagos, Nigeria
[7] Deakin Univ, Rural Community Clin Sch, Sch Med, Burwood, Vic, Australia
[8] Nnamdi Azikiwe Univ, Fac Hlth Sci & Technol, Dept Med Lab Sci, Nnewi, Nigeria
[9] Nnamdi Azikiwe Univ, Dept Obstet & Gynaecol, Effect Care Res Unit, Awka Nnewi Campus,PMB 5001, Nnewi 435001, Anambra, Nigeria