Single Best Answer (SBA) examinations are an increasingly popular means of testing medical students and those undertaking postgraduate qualifications in a number of subject areas. Written by a final-year medical student, junior doctors, and experienced clinicians, 450 Single Best Answers in the Clinical Specialties provides invaluable guidance from

Authors: Sukhpreet Singh Dubb, Foundation Year 1 Doctor, Imperial College NHS Healthcare Trust, London, UK; Alex Bailey, Teaching Fellow and Honorary Lecturer in Psychiatry, Imperial College NHS Healthcare Trust, London, UK; Charlene Rodrigues, Academic Clinical Fellow in Paediatric Infectious Disease, Imperial College NHS Healthcare Trust, London, UK; Margaret Rhoads, Academic Clinical Fellow in Paediatric Infectious Disease, Imperial College NHS Healthcare Trust, London, UK; Jeffrey Ahmed, Foundation Year 2 Trainee, Imperial College NHS Healthcare Trust, London, UK; Edward Maclaren, Specialist Registrar in Obstetrics and Gynaecology, Imperial College NHS Healthcare Trust, London, UK Editorial advisors: Martin Lupton, Consultant in Obstetrics and Gynaecology, Imperial College NHS Healthcare Trust, London, UK; Gareth Tudor-Williams, Consultant in Paediatric Infectious Diseases, Imperial College NHS Healthcare Trust, London, UK; James Warner, Consultant in Older Adults Psychiatry, Imperial College NHS Healthcare Trust, London, UK