Ngianga-Bakwin Kandala*, Tumwaka P Madungu, Jacques BO Emina, Kikhela PD Nzita and Francesco P Cappuccio
* Corresponding author: Ngianga-Bakwin Kandala N-B.Kandala@warwick.ac.uk
BMC Public Health 2011, 11:261 doi:10.1186/1471-2458-11-261