Variability of the QuantiFERON®-TB Gold In-Tube Test Using Automated and Manual Methods. - Whitworth, William C.; Goodwin, Donald J.; Racster, Laura; West, Kevin B.; Chuke, Stella O.; Daniels, Laura J.; Campbell, Brandon H.; Bohanon, Jamaria; Jaffar, Atheer T.; Drane, Wanzer; Sjoberg, Paul A.; Mazurek, Gerald H. (PLoS ONE, 2014)