Welcome to the health professionals section of the Audiological 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. Hearing assessmentRead about our paediatric hearing assessments. Balance testing clinicInformation about our balance testing clinic. Meet the teamMeet the team who make up our department. Research and publicationsFind out about our research and publications. Contact usHow to contact the department.