| AOT | accessory optic tract; Anderson Olsson table; anodal opening tetanus; Association of Occupational Th... |
|---|---|
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| BTD | biliary tract disease |
| BTP | biliary tract pain; biological treatment planning |
| COBT | chronic obstruction of the biliary tract |