Join Our Studies – Boston Click the icons below to take the survey to see if you’re eligible! You can take the survey for as many studies as you’d like. We will contact you for more information if you are eligible. On PrEP? Interested in PrEP? Make up to $400 to give us your opinion on a 4-week counseling program for gay and bisexual men ages 16-24 to improve PrEP adherence. Now fully remote!