مقالة · مجلة · 2009
Obinna Onwujekwe, Benjamin Uzochukwu, Nkem Dike, Chijioke Ifeanyi Okoli, Soludo Eze, Ogoamaka Chukwuogo
International Journal for Equity in Health
اقرأه10.1186/1475-9276-8-45
كما طُبع: Chijioke Okoli