مقالة · مجلة · 2014
Islene Araujo de Carvalho, Julie Byles, Charles Aquah, George Amofah, Richard Biritwum, Ulysses Panisset و2 آخرون
Bulletin of the World Health Organization
اقرأه10.2471/blt.14.136242
كما طُبع: John Beard