| Abbreviations | Meaning |
 | AHB | Alpha-hydroxybutyric Acid |
| TCH | Tanned-cell Hemagglutination; Thiophen-2-carboxylic Acid Hydrazide; Total Circulating Hemoglobin; Turn, Cough, Hyperventilate |
| NA | Nucleic Acid |
| HH | Hydralazine Acid-labile Hydrazone |
| PUFA | Polyunsaturated Fatty Acid |
| HCCA | Healthcare Commuting Area; 4-hydroxycinnamic Acid |
| PLGA | Polylactic/glycolic Acid |
| RAPD | Randomly Amplified Polymorphic Deoxyribonucleic Acid [DNA]; Relative Afferent Pupillary Defect |
| NSD | N-acetylneuraminic Acid (NANA) Storage Disorders |
| TBA | Total Bile Acids |
| AGAG | Acidic Glycosaminoglycans |
| OA | Orotic Acid |
| NAA | Neutral Amino Acid |
| AHA | Anti-heart Antibody; Antihistone Antibody; Area Health Authority; Arthritis-hives-angioedema [syndrome]; Aspartyl-hydroxamic Acid; Autoimmune Hemolytic Anemia |
| NAA | Naphthaleneacetic Acid |
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