I. A. Adeoye1, M. D. Dairo1, L. V. Adekunle1, H. O. Adedokun2 and J. Makanjuola2
1Department of Epidemiology and Medical Statistics, College of Medicine, Ibadan, Oyo State, Nigeria.
2Department of Public Health Nursing, University College Hospital, Ibadan, Oyo State, Nigeria.
