Evaluation of a procedure that increases retention in follow-up studies of I.V. drug users at risk of HIV infection.

國立臺灣師範大學健康促進與衛生教育學系Messiah, M.Metzger, D. S.Davis-Vogel, A.Navaline, H.Lee, Szu-Hsien T.Woody, G.2014-12-022014-12-021999-01-01http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/40434Evaluation of a procedure that increases retention in follow-up studies of I.V. drug users at risk of HIV infection.