| OTS | occipital temporal sulcus; orotracheal suction |
|---|---|
| RoS | rostral sulcus |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| RLL | right lobe of liver; right lower limb; right lower lobe |
| LA | 1) Left Atrium 2) Latex Agglutination |