TY - JOUR T1 - Early conversion of tuberculin skin test in medical students who begin hospital practices JO - Brazilian Journal of Infectious Diseases A1 - Soto, Alonso A1 - Huablocho, Pahola A1 - Ulloque, Johan SN - 1413-8670 UL - 10.1016/j.bjid.2012.10.027 VL - 17 Y1 - 2013 PB - Brasil ER -