Ford, W. L., Weiss, G., Kipke, M. D., Ritt-Olson, A., Iverson, E., & Lopez, D. (2009). The Healthy Young Men’s Study: Sampling Methods to Recruit a Random Cohort of Young Men Who Have Sex with Men.

Ford, Wesley L., George Weiss, Michele D. Kipke, Anamara Ritt-Olson, Ellen Iverson, و Donna Lopez. The Healthy Young Men’s Study: Sampling Methods to Recruit a Random Cohort of Young Men Who Have Sex With Men. 2009.

Ford, Wesley L., et al. The Healthy Young Men’s Study: Sampling Methods to Recruit a Random Cohort of Young Men Who Have Sex With Men. 2009.