| PPI | partial permanent impairment; patient package insert; present pain intensity; purified porcine insul... |
|---|---|
| PPR | physician-patient relation; physician payment reform; posterior primary ramus; Price precipitation r... |
| PPS | Personal Preference Scale; physician, patient and society [course]; polyvalent pneumococcal polysacc... |
| PRF | partial reinforcement; patient report form; perforin; plasma recognition factor; pontine reticular f... |
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |