Published on in Vol 22, No 1 (2020): January
![The Impact of Advertisement Messaging on Enrollment of Young Men Who Have Sex With Men for Web-Based Research: Observational Study The Impact of Advertisement Messaging on Enrollment of Young Men Who Have Sex With Men for Web-Based Research: Observational Study](https://asset.jmir.pub/assets/4196bf632dfea33b0d3abc8e985610aa.png 480w,https://asset.jmir.pub/assets/4196bf632dfea33b0d3abc8e985610aa.png 960w,https://asset.jmir.pub/assets/4196bf632dfea33b0d3abc8e985610aa.png 1920w,https://asset.jmir.pub/assets/4196bf632dfea33b0d3abc8e985610aa.png 2500w)
1 Connell School of Nursing, Boston College, Chestnut Hill, MA, United States
2 The Fenway Institute, Boston, MA, United States
3 Department of Biobehavioral Health, Penn State University, University Park, PA, United States
4 DSN Consulting, LLC, Quincy, MA, United States
5 Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
6 Computational Epidemiology Lab, Harvard Medical School, Boston, MA, United States
7 Section of Adolescent Medicine, Indiana University School of Medicine, Indianapolis, IN, United States