The North-South divide: Substance use risk, care engagement, and viral suppression among hospitalized human immunodeficiency virus-infected patients in 11 US cities

Morgan M. Philbin, Daniel J. Feaster, Lauren Gooden, Rui Duan, Moupali Das, Petra Jacobs, Gregory M. Lucas, D. Scott Batey, Ank E Nijhawan, Jeffrey M. Jacobson, Raul Mandler, Eric Daar, Deborah K. McMahon, Wendy S. Armstrong, Carlos Del Rio, Lisa R. Metsch