TY - JOUR T1 - Changing patterns of drug use and HIV infection. JF - British Journal of General Practice JO - Br J Gen Pract SP - 430 LP - 431 VL - 40 IS - 339 AU - J R Robertson AU - J J Roberts AU - J C Witcomb AU - J Egan Y1 - 1990/10/01 UR - http://bjgp.org/content/40/339/430.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -