Research subjects are needed for a study evaluating the technique of penile length measurement using the Phallometer device. A nominal gift certificate of $50 value and parking vouchers will be provided.
Participants may be eligible if: -they are a male between 10 to 35 years -they are healthy with no previous pelvic or penile surgery
For information call: 410-502-6407 or Email: dhawksw1@jhmi.edu
