East London Clinics Here you can find a list of GUM clinics in East London. AREA:Aldgate 80 Leadenhall Street Barking Outpatient East Centre GUM Department, Barking Hospital (formerly the Sydenham Centre) Hackney Homerton Sexual Health Services - The Clifden Centre Leytonstone Department of Sexual Health, Whipps Cross Hospital Accident & Emergency, Whipps Cross Hospital Newham ⁄ Plaistow Greenway Centre, Newham General Hospital Romford Queens Hospital GUM Department Tower Hamlets Sylvia Pankhurst Centre, Mile End Hospital Options (young people's sexual health service), Step Forward Positive East HIV Clinics, Positive East Whitechapel Ambrose King Centre, Royal London Hospital Accident & Emergency Department, Royal London Hospital