His research focuses on intersections of nationalism, globalization, and health in Nigeria. He is the co-editor of several volumes including HIV/AIDS, Illness and African Well-Being (Rochester, NY: University of Rochester Press, 2006) and Health Knowledge and Belief Systems in Africa (Durham, NC: Carolina Academic Press, 2008), and the co-author of A History of Nigeria (Cambridge: Cambridge University Press, 2008). He is currently completing a monograph on the transition from colonial to cross-cultural psychiatry in twentieth century Nigeria.