Primary Rate Interface pulse repetition interval Primary Performance Review Institute Primary Rate ISDN Prime Line prior Pain Rating Index priority Paleontological Research Institution Partido Revolucionario Institucional Patient Review Instrument phosphate reabsorption index placental ribonuclease inhibitor Plastics and Rubber Institute PRocedure Interrupt progressive routing indicator Public Radio International PUERTO RICO Aerotransportes Privados PACAP receptor I Pacific Research Institute pantographic reproducibility index Partido Revolutionario Institutional Pediatric Risk Index Performance Racing Industry performance rating instrument perinatal respiratory insufficiency Petroleum Recovery Institute Pharyngeal Retention Index phenol red impurity Phosphate Retention Index phosrestin I Photo Radar Intelligence photochemical reflectance index Photographic Reconnaissance and Interpretation Physical Research Instrumentation, Inc. placental RNase inhibitor Plant Research International Plasticity Retention Index
Primary Rate Interface
Primary