| Abbreviations | Meaning |
 | NBS | Nijmegen Breakage Syndrome |
| AIDSTRIALS | Clinical Trials Of Acquired Immunodeficiency Syndrome Drugs [MEDLARS Data Base] |
| COS | Carbon Oxysulfide; Cheiro-oral Syndrome; Chief Of Staff; Clinically Observed Seizures; Clinical Orthopaedic Society |
| RSS | Repetitive Stress Syndrome |
| CHHS | Congenital Hypothalamic Hamartoma Syndrome |
| LGS | Langer-Giedion Syndrome; Lennox-Gastaut Syndrome; Limb Girdle Syndrome |
| DRC | Digitorenocerebral [syndrome] |
| MMIHS | Megacystis-microcolon-intestinal Hypoperistalsis Syndrome |
| AMR | Alopecia-mental Retardation [syndrome] |
| PSIDS | Partially Unexplained Sudden Infant Death Syndrome |
| CLC | Clerc-Levy-Critesco (syndrome) |
| UGH+ | Uveitis-glaucoma-hyphema Plus Vitreous Hemorrhage (syndrome) |
| DG/VCF | DiGeorge/velocardiofacial [syndrome] |
| ACTS | Acute Cervical Trauma Syndrome |
| FMR | Fragile Site Mental Retardation [syndrome]; Friend-Moloney-Rauscher [antigen] |
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