Once your practice has enrolled, data are automatically extracted from your practice’s EMR without any ongoing effort on your part. Periodically, CPCSSN may seek to make changes to the range of data collected or uses of collected data. In this situation, we will inform sites of potential changes and may seek your renewed consent to participate. At any time, practices can choose to end their participation in the study. Individual patients at participating sites can also opt out of CPCSSN and no data will be collected on these individuals.