Patients will complete questionnaires at each visit. Calls from the patients to the lung transplant center with GI complaints will be queried and documented on the case report form by the research nurse at each study visit. Similarly, hospital admissions for GI related complaints in the cohort will be documented. Symptom severity and health related quality of life will be assessed through the following questionnaires that have previously been validated in populations other than lung transplant (1). These questionnaires are selected specifically to capture the impact of GI complaints as related to the health related quality of life. The questionnaires that will be completed by the patient: