| Abbreviations | Meaning |
 | LGS | Langer-Giedion Syndrome; Lennox-Gastaut Syndrome; Limb Girdle Syndrome |
 | MST | Myeloproliferative Syndrome, Transient |
 | LGL | Large Granular Leukocyte; Large Granular Lymphocyte; Lown-Ganong-Levine [syndrome] |
 | LGBS | Landry-Guillain-Barre Syndrome |
 | TA-AIDS | Transfusion-associated Acquired Immunodeficiency Syndrome |
 | LGB | Landry-Guillain-Barre [syndrome]; Lateral Geniculate Body |
 | CS | Carcinoid Syndrome |
 | SIRS | Soluble Immune Response Suppressor; Structured Interview Of Reported Symptoms; Systemic Inflammatory Response Syndrome |
 | HHE | Health Hazard Evaluation; Hemiconvulsion-hemiplegia-epilepsy [syndrome]; Hypotonic Hyporesponsive Episode |
 | USH1C | Usher Syndrome Type IC |
 | LH | Lateral Hypothalamic [syndrome] |
 | AIDS | Acquired Immune Deficiency Or Immunodeficiency Syndrome |
 | PFPS | Patellofemoral Pain Syndrome |
 | IS | Impingement Syndrome |
 | POTS | Postural Orthostatic Tachycardia Syndrome |