J. de Graft Johnson

发表

J. Fortney, E. Wong, J. Smith, 2001, Bulletin of the World Health Organization.

S. Brooker, S. Adjei, A. Hall, 2001, Public Health Nutrition.

J. Lawn, K. Kerber, G. Darmstadt, 2015, BMC Pregnancy and Childbirth.

A. Costello, J. Lawn, V. Paul, 2013, Reproductive Health.