Welcome to the health professionals section of the Gastroenterology Department at Great Ormond Street Hospital. About usInformation about the department. Clinical guidelinesReview the department's clinical guidelines. Refer a patientDetails on how to refer a patient to our care and admission criteria for inpatients. Conditions we treatInformation on the conditions we treat. Meet the teamMeet the team who make up our department. Research and publicationsFind out about our research and publications. Clinical outcomesView information on clinical outcomes for the service. Contact usHow to contact the department.