Araya Medhanyie*, Mark Spigt, Yohannes Kifle, Nikki Schaay, David Sanders, Roman Blanco, Dinant GeertJan and Yemane Berhane
* Corresponding author: Araya Medhanyie arayaabrha@yahoo.com
BMC Health Services Research 2012, 12:352 doi:10.1186/1472-6963-12-352