| IAG | International Association of Gerontology; International Academy of Gnathology |
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| IAPM | International Academy of Preventive Medicine |
| NAS | nasal; National Academy of Sciences; National Association of Sanitarians; neonatal airleak syndrome;... |
| NAS-NRC | National Academy of Science-National Research Council |
| AACN | American Association of Colleges of Nursing; American Association of Critical-Care Nurses |
| SLICC/ACR | Systemic Lupus International Collaborating Clinics/American College of Rheumatology |
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