1. Federal Capital Territory (FCT) Expanded Programme on Immunization, Abuja, Nigeria
2. Department of Sociology/Anthopology, University of Nigeria, Nsukka, Enugu State, Nigeria
3. Department of Sociology, University of Abuja, Nigeria
4. Department of Religion, University of Nigeria, Nsukka, Nigeria
5. Department of Sociology/Anthropology, Baze University, Abuja, Nigeria
6. Health Policy Research Group, University of Nigeria, Enugu Campus, Enugu State, Nigeria