Helleberg M, May MT, Ingle SM, Dabis F, Reiss P, Fatkenheuer G, et al. Smoking and life expectancy among HIV-infected individuals on antiretroviral therapy in Europe and North America. AIDS. 2015;29(2):221-9.

• Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4284008/