RRHR means regional radiological health representative in FDA
Similar to RRHR
AAAP - American Association of Avian PathologistsAABB - American Association of Blood Banks
AABP - American Association of Bovine Practitioners
AACR - American Association for Cancer Research
AADA - Abbreviated Antibiotic Drug Application
AAEP - American Association of Equine Practitioners
AAFCO - Association of American Feed Control Officials
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