| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
|---|---|
| HHT | head halter traction; hereditary hemorrhagic telangiectasia; heterotopic heart transplantation; homo... |
| HO | hand orthosis; heterotopic ossification; high oxygen; hip orthosis; history of; Holt-Oram [syndrome]... |
| BST | bacteriuria screening test; blood serologic test; brief stimulus therapy |
| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |