| Abbreviations | Meaning |
 | TEC | Transient Erythroblastopenia Of Childhood |
 | TF | Term Formula [infant Feeding] |
 | TSIDS | Totally Unexplained Sudden Infant Death Syndrome |
 | UAC | Umbilical Artery Catheter; Unusual-appearing Child |
 | UCD | Usual Childhood Diseases |
 | UCD | Urine Collection Device; User-centered Design [information System]; Usual Childhood Diseases |
 | UCHD | Usual Childhood Diseases |
 | UCI | Unusual Childhood Illness |
 | UCI | Unusual Childhood Illness; Urethral Catheter In; Urinary Catheter In |
 | UDC | Usual Diseases Of Childhood |
 | UKCCSG | United Kingdom Children's Cancer Study Group |
 | VASC | Vascular; Verbal Auditory Screen For Children; Visual-auditory Screening |
 | VFC | Vaccines For Children Program |
 | VFC | Vaccine For Children; Ventricular Function Curve |
 | VMCHN | Victorian Maternal And Child Health Nurses |
 | WC | White Child |
 | WH CH | Wheel Chair; White Child |
 | WIC | Special Supplemental Food Program For Women, Infants, And Children |
 | WIC | Walk-in Clinic; Women, Infants, And Children |
 | WISC | Wechsler Intelligence Scale For Children |
 | WISC-R | Wechsler Intelligence Scale For Children-Revised |
 | WITS | Women And Infants Transmission Study |
 | YLC | Youngest Living Child |