We have a number of procedures for ensuring quality. All new respondents must double opt-in before they can be considered for our community. Once they complete the enrollment process they are placed in a verification queue where the enrollment data is verified to be accurate. Verification sources include the public internet, the AMA database, and state license records. We will also collect copies of medical credentials and call enrollees to verify them. Once they are verified they are activated within the community and are now eligible to take surveys. We also use IP address information to verify our panelists. We use Geolocation to ensure IP addresses are in the expected geographies and flag those respondents whose IP information is outside of expectation. We can provide de-identified IP data if required.