| AT | abdominal thrusts; achievement test; Achilles tendon; Achard-Thiers [syndrome]; adaptive thermogenes... |
|---|---|
| ATB | at the time of the bomb [A-bomb in Japan]; atrial tachycardia with block |
| AVNRT | atrioventricular node reentry tachycardia |
| BTS | blood transfusion service; blue toe syndrome; bradycardia-tachycardia syndrome |
| CEAT | chronic ectopic atrial tachycardia |