Department of Health Promotion and Education,University of Ibadan, Ibadan, Nigeria.
Researcher - Assistant Professor - Occupational Medicine Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", Occupational Health Section, University of Palermo, Italy
Associate Professor, Public Health (Health Promotion) School of Public Health & Primary Health Care Fiji National University Tamavua Campus, Suva, Fiji Islands
Director, Stanford Health Promotion Network, Stanford University, USA