Cita APA

Sivapalasingam, S., Klein, R. S., Howard, A., Qin, A., Tseng, C., & Gourevitch, M. N. (2009). Housing insecurity and lack of public assistance are risk factors for tuberculin skin test conversion among persons who use illicit drugs in New York City.

Chicago Style Citation

Sivapalasingam, Sumathi, Robert S. Klein, Andrea Howard, Angie Qin, Chi-hong Tseng, i Marc N. Gourevitch. Housing Insecurity and Lack of Public Assistance Are Risk Factors for Tuberculin Skin Test Conversion Among Persons Who Use Illicit Drugs in New York City. 2009.

Cita MLA

Sivapalasingam, Sumathi, et al. Housing Insecurity and Lack of Public Assistance Are Risk Factors for Tuberculin Skin Test Conversion Among Persons Who Use Illicit Drugs in New York City. 2009.