Choy, Y., Gittens-Williams, L., Apuzzio, J., Skurnick, J., Zollicoffer, C., & McGovern, P. G. (2003). Risk Factors for Hepatitis C Infection Among Sexually Transmitted Disease-Infected, Inner City Obstetric Patients. Hindawi Publishing Corporation.

Choy, Youyin, Lisa Gittens-Williams, Joseph Apuzzio, Joan Skurnick, Carl Zollicoffer, και Peter G. McGovern. Risk Factors for Hepatitis C Infection Among Sexually Transmitted Disease-Infected, Inner City Obstetric Patients. Hindawi Publishing Corporation, 2003.

Choy, Youyin, et al. Risk Factors for Hepatitis C Infection Among Sexually Transmitted Disease-Infected, Inner City Obstetric Patients. Hindawi Publishing Corporation, 2003.