Detecting Disengagement from HIV Care Before It's Too Late: Development and Preliminary Validation of a Novel Index of Engagement in HIV Care.

Johnson MO, Neilands TB, Koester KA, Wood T, Sauceda JA, Dilworth SE, Mugavero MJ, Crane HM, Fredericksen RJ, Mayer KH, Mathews WC, Moore RD, Napravnik S, Christopoulos KA