<qa>  What is CHR the only data collection site for study subjects?While multiple clinics will offer advice and referral options to smokers, research staff at only one data collection site i.e., CHR will carry out all study recruitment, consent, and data collection activities as part of the post-visit and annual follow-up surveys. Because CHR is the only data collection site for study subjects, and the fact that we are all part of a single well-integrated organization operating under a single IRB, we view this as a single-site study. 