Procedures Patients in both groups will be offered out-patient appointment dates and times. Those randomized to face-to-face follow up will attend their appointments in hospital as usual. Those randomized to telephone consultation will be told to expect a call from the gastroenterology doctor at the time of their appointment (which will be after school hours). The consulting doctor will contact the patient and parents via a telephone number (home or mobile) that the parents and patient had previously supplied as the number they would like to be contacted on. As much as possible, parents and patients will be advised to be together at the time of the appointment in order to allow both of them to participate in the consultation as is usual in practice. Up to 3 attempts within 20 minutes will be made to contact patients by phone. Details about each consultation including date and time, who was present, duration of consultations, and failed attempts at phone calls will be recorded. Patients who "DNA" an appointment in either group will be sent another appointment in accordance with normal practice.