Gaines Tommi L, Rusch Melanie L A, Brouwer Kimberly C, Lozada Remedios, Perkins Emily E, Strathdee Steffanie A, Patterson Thomas L
Division of Global Public Health, University of California, San Diego, USA.
J Urban Health. 2013 Oct;90(5):915-20. doi: 10.1007/s11524-012-9735-1.