Koyio, Lucina, Wil JM van der Sanden, Andre van der Ven, Nico Creugers, Matthias Merkx, and Jo Frencken. 2012. “Effect of Education of Primary Health Care Workers on HIV-Related Oral Lesions in Nairobi East District”. Journal of Public Health Research 1 (2), e20. https://doi.org/10.4081/jphr.2012.e20.