V Ganu | Korle Bu Teaching Hospital | vincentjganu@gmail.com 
K Torpey | University of Ghana, School of Public Health | ktorpey@hotmail.com
S Ayisi Addo | National AIDS/STI Control Programme | saddo@nacpghana.org
J Nai-Dowetin | University of Ghana, School of Public Health | jaidowetin@yahoo.com 
E Kenu | University of Ghana, School of Public Health | Ernest_kenu@yahoo.com