Organization Abbreviations and Acronyms
- AAPPAmerican Academy on Physician and Patient
- AAPPOAmerican Association of Preferred Provider Organizations
- AAPPTAmerican Academy of Pediatrics Proficiency Testing
- AAPSAmerican Association of Physician Specialists, Inc.
- AAPSAmerican Association of Pharmaceutical Sciences
- AAPSAssociation of American Physicians and Surgeons
- AAPSAAmerican Academy of Psychoanalysis
- AAPSCAmerican Association of Psychiatric Services for Children
- AAPTAssociation for the Advancement of Psychotherapy
- AAPTCAustralian Association of Paediatric Teaching Centres
- AARCAmerican Association for Respiratory Care
- AARDAmerican Academy of Restorative Dentistry
- aardaAmerican Autoimmune Related Diseases Association's
- AARHMSAmerican Academy of Research Historians of Medieval Spain
- AARNAssociation for Australian Rural Nurses
- AARNAlberta Association of Registered Nurses
- AASCINAmerican Association of Spinal Cord Injury Nurses
- AASCIPSWAmerican Association of Spinal Cord Injury Psychologists and Social Workers
- AASECTAmerican Association of Sex Educators Counselors and Therapists
- AASHAmerican Association for the Study of Headache
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