Martin U, Hasibuan P. J Respir Indones. 2010;30(2);112-8. Objective : Health care workers (HCWs) in developing countries are at risk for nosocomial tuberculosis (TB). In this study, we are going to determine the prevalence of latency tuberculosis among HCWs in H. Adam Malik hospital in Medan. Material and Methods : It is a cross sectional […]