Clinical Research Directory

Inclusion Criteria: * people who are able to use the private bathroom at no risk to themselves in the CIEMAS building (B508) or the bathroom located in room 4002, 4th floor of MSRB3. * students or employees at Duke University since card access is required for our MSRB3 bathroom. * people who spend most of their time in these buildings so we can assure the use of the toilet. * If the recruitment number is slow, enrollment will include people from the closest buildings. Exclusion Criteria: * People who use wheelchairs or other mobility devices won't be able to enroll, since at this moment the bathroom is not compliant with the requirements on The Americans with Disabilities Act (ADA) of 1990.