Trends in HIV Infection Among Persons Who Inject Drugs: United States and Puerto Rico, 2008–2013 Andrew John Mitsch, MPH, H. Irene Hall, PhD, MPH, and Aruna Surendera Babu, MS

https://drive.google.com/file/d/0B4lLBVh29JUYaFhVQUk2a09IN00/view?usp=sharing