The BMA is the British Medical Association: the organisation that speaks for doctors in the United Kingdom. It is a professional body and, in practice, a kind of union as well — it argues about pay, working hours, and how the health service should run, and it gives doctors advice and a collective voice. The United States has a similar organisation called the AMA (American Medical Association). The BMA is also tied to a famous medical magazine, The BMJ (The British Medical Journal, now usually just The BMJ). You will see BMA in UK news when doctors vote, strike, or publish guidance; it is not a hospital and not the government. In Taiwan this name is not part of daily life unless you are reading British papers. Letters always: B-M-A.