| BOOP | bronchiolitis obliterans-organizing pneumonia |
|---|---|
| BRO | bronchiolitis obliterans; bronchoscopy |
| BXO | balanitis xerotica obliterans |
| TAO | thromboangiitis obliterans; triacetyloleandomycin |
| TO | old tuberculin; oral temperature; original tuberculin; target organ; telephone order; thoracic ortho... |