| Abbreviations | Meaning |
 | CHS1 | Chediak Higashi Syndrome Gene, Located On Chromosome 1 (1q42-44) |
 | VAHS | Virus-associated Hemophagocytic Syndrome |
 | SSS | Systemic Sicca Syndrome |
 | FUS | Feline Urologic Syndrome; First-use Syndrome; Focused Ultrasound Surgery; Fusion |
 | US4 | Usher Syndrome Type IV |
 | MCES | Medical Care Evaluation Study; Multiple Cholesterol Emboli Syndrome |
 | MAIDS | Mouse Acquired Immunodeficiency Syndrome |
 | POHS | Presumed Ocular Histoplasmosis Syndrome |
 | PLS | Papillon-Lefevre Syndrome |
 | CCHS | Congenital Central Hypoventilation Syndrome; Copenhagen City Heart Study |
 | JS | Jejunal Segment; Job Syndrome; Junctional Slowing |
 | IS | Impingement Syndrome |
 | PJ | Pancreatic Juice; Peutz-Jeghers [syndrome] |
 | TAS | Tetanus Antitoxin Serum; Therapeutic Activities Specialist; Thoracoabdominal Syndrome; Transcription-based Amplification System; Traumatic Apallic Syndrome |
 | CFS | Chiari-Frommel Syndrome |