[1] Wollo Univ, Coll Med & Hlth Sci, Sch Med, Dept Human Physiol, Dessie, Ethiopia
[2] Univ Gondar, Coll Med & Hlth Sci, Sch Med, Dept Human Physiol, Gondar, Ethiopia
[3] Univ Gondar, Inst Publ Hlth, Coll Med & Hlth Sci, Dept Epidemiol & Biostat, Gondar, Ethiopia
[4] Hawassa Univ, Coll Med & Hlth Sci, Sch Med, Dept Human Physiol, Hawassa, Ethiopia