مقالة · مجلة · 2015
Kavita Singh, Isaac Osei‐Akoto, Frank Otchere, Sodzi Sodzi-Tettey, Clare Barrington, Carolyn Huang و2 آخرون
BMC Health Services Research
اقرأه10.1186/s12913-015-0762-y
كما طُبع: Isaac Osei-Akoto
كما طُبع: Ilene Speizer