Predictors of anaemia among adolescent schoolchildren of Ghana oleh Lucas Gosdin, Katie Tripp, Abraham B. Mahama, Kate Quarshie, Esi Foriwa Amoaful, Lilian Selenje, Deepika Sharma, Maria Elena Jefferds, Andrea J. Sharma, Ralph D. Whitehead, Parminder S. Suchdev, Usha Ramakrishnan, Reynaldo Martorell, O. Yaw Addo