An Evaluation of Systematic Tuberculosis Screening at Private Facilities in Karachi, Pakistan J Creswell, S Khowaja, A Codlin, R Hashmi, E Rasheed, M Khan, I Durab, C Mergenthaler, O Hussain, F Khan, and AJ Khan 4 April 2014 - PLOs One http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0093858