 Up to five hundred eligible patients seen at each of the nine participating Centers will be approached by mail, phone, at the time of their visit, etc. and invited to consent to the paper and pencil study. The patient survey will clearly state that participation is voluntary with a written consent to participate on the front. Individual practices will report the response rate in order to monitor the potential effect of volunteer bias. Participant completion of questionnaires should take 15 to 30 minutes, and should be completed within 2 weeks of the patient visit., The corresponding provider form will be completed by the providerresearch staff within 5 days of the visit. 