Throughout the study, you will be asked to fill out a symptom questionnaire. You will be asked about symptoms you may be experiencing and how they may be interfering with your daily activities. When you are in the clinic, the questionnaire can be completed by paper and pen with the study staff or by entering your answers into a computer. When you are away from the clinic, the questionnaire may be completed either through a phone call with the study staff or through a phone call from the interactive voice response (IVR) system. The symptom questionnaire will take up to 5 minutes each time. The study staff will give you the information you need to complete the questionnaire through the IVR system.