Positron Emission Tomography 
Print Enhancement Technology 
Petro Clear 
Petter 
Portable Earth Terminal 
Peripheral Equipment Tester 
Polyethylene Terephthalate 
Programming Environment and Training 
Proton-Electron Telescope 
pancreatic endocrine tumor 
performance evaluation team 
Performance Evaluation Test 
peritoneal equilibration test 
Personal Electronic Transactor 
Phase Elapsed Time 
photoinduced electron transfer 
Piston Engine Technology 
Point of Equal Time 
Positron Emission Tomogrpahy 
Positron Emmission Tomography 
Privacy Enhancing Technology 
Product Enterprise Team 
Program Excellence Team 
pupil evaluation team 
Aerotransporte Petrolero 
Pacific Engineering Trials 
pancreatic endocrine tumors 
pancreatic endocrine tumours 
paraffin-embedded tissue 
Parent Effectiveness Training