| PAF | paroxysmal atrial fibrillation; peroxisomal assembly factor; phosphodiesterase-activating factor; pl... |
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| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |
| RAP | recurrent abdominal pain; regression-associated protein; renal artery pressure; resident assessment ... |
| SLAT | simultaneous laryngoscopy and abdominal thrusts |
| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |
| lower abdominal periosteal reflex | A deep abdominal reflex in which there is a contraction of the abdominal muscles on tapping the anterior superior iliac spine. Synonym: lower abdominal periosteal reflex. (05 Mar 2000) |
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| lymph nodes of abdominal organs | The numerous lymph nodes receiving lymph from abdominal organs located in association with the visceral branches of the aorta. Synonym: nodi lymphatici abdominis viscerales. (05 Mar 2000) |