HPRF - What does HPRF stand for? The Free Dictionary
References in periodicals archive
The exposed group consisted of children from HPHC and HPRF
who changed from having a generic drug copayment for albuterol inhalers to having a higher branded drug copayment after the policy change.
An improved radar transmitter and receiver provide good frequency agility and allow variable waveforms: low, medium, and high pulse-repetition frequency (LPRF, MPRF, and HPRF