@article{031558721, title = "Genetic and antigenic variation in Pneumocystis carinii organisms: tools for examining the epidemiology and pathogenesis of infection", author = "Smulian, A.G. and Keely, S.P. and Sunkin, S.M. and Stringer, J.R.", year = "1997", journal = "Journal of Laboratory and Clinical Medicine", volume = "130", number = "5", pages = "461-468", issn = "0022-2143", doi = "10.1016/s0022-2143(97)90122-0", url = "https://eurekamag.com/research/031/558/031558721.php" }