| Abbreviations | Meaning |
 | RA | Retinoic Acid |
 | PHPLA | P-hydroxyphenyllactic Acid |
 | PHHV | Phalacrocoracid Herpesvirus |
 | PMA | Phosphomolybdic Acid |
 | PHPPA | P-hydrophenylpyruvic Acid |
 | PGA | Pteroylglutamic Acid |
 | GAU | Guanine-adenine-uracil Codon For Aspartic Acid |
 | NBAT | Neutral And Basic Amino Acid Transporter |
 | VMA | Vanillylmandelic Acid (urine Levels Concordant To Serum Catecholamine Levels) |
 | PIPIDA | P-isopropylacetanilidoimidodiacetic Acid |
 | AAN | American Association Of Neuropathologists; Amino Acid Nitrogen; Analgesic-associated Nephropathy; Attending's Admission Notes |
 | UAR | Uric Acid Riboside |
 | HGA | Homogentisic Acid |
 | AT-PAS | Aldehyde-thionine-periodic Acid Schiff [test] |
 | KIVA | Keto Isovaleric Acid |