Similar to DES (OC)

AAPM - American Association of Physicists in Medicine
AAR - After Action Review
AARP - American Association of Retired Persons
AAS - Acute Abdominal Series
AASRP - American Association of Small Ruminant Practitioners
AATB - American Association of Tissue Banks
AAVLD - American Association of Veterinary Laboratory Diagnosticians

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