This London Primary healthcare centre is located in Pickering House in the Hallfield Estate. The practice was originally the practice of A. J Cronin who wrote the novel, The Citadel. Services provided at the clinic include chronic disease management, cervical smears, dietary advice, family planning and contraceptive assistance, administration of immunizations and vaccines for children and adults, health examinations for children, male and female adults and maternity care. Home visits are arrangement if patients are too ill to come to the clinic and repeat prescriptions are provided for written requests.