British HIV Association/British Association for Sexual Health and HIV/British Infection Association adult HIV testing guidelines 2020. (17th December 2020) - Palfreeman, Adrian; Sullivan, Ann; Rayment, Michael; Waters, Laura; Buckley, Anna; Burns, Fiona; Clutterbuck, Daniel; Cormack, Ian; Croxford, Sara; Dean, Gillian; Delpech, Valerie; Josh, Jo; et al.