| MSER | mean systolic ejection rate |
|---|---|
| MVP-SC | mitral valve prolapse-systolic click [syndrome] |
| PAS | para aminosalicylate; Parent Attitude Scale; patient administration system; patient appointments and... |
| PASP | pancreas-specific protein; pulmonary artery systolic pressure |
| PSE | paradoxical systolic expansion; penicillin-sensitive enzyme; portal systemic encephalopathy; Present... |