Our internationally respected BSA documents provide evidence-based guidance to clinicians. They follow a rigorous production process of authoring, internal review, expert peer review and public consultation. They are produced by the BSA Special Interest Groups (SIGs) and Professional Guidance Group (PGG), who have overall responsibility for maintaining documents. We always welcome comments, which should be sent to firstname.lastname@example.org. All of the documents listed are current. Those that are beyond their review date are under review, but remain current until replaced.