| OPP | Organo-Phosphorous Pesticide; 유기인제 1. Parathion 2. DDVP 3. Malathion 4. Ethion 5. Diazinon 6. Phorate |
|---|---|
| OPP | osmotic pressure of plasma; oxygen partial pressure |
| opp | opposite |
| OPPA | vincristine, procarbazine, prednisone, Adriamycin |
| OPPG | oculopneumoplethysmography |