| Abbreviations | Meaning |
 | PSIDS | Partially Unexplained Sudden Infant Death Syndrome |
 | ISAAC | International Study Of Asthma And Allergies In Childhood |
 | LBWI | Low-birth-weight Infant |
 | UAC | Umbilical Artery Catheter; Unusual-appearing Child |
 | LC | Living Children |
 | CIF | Cartilage Induction Factor; Cloning Inhibitory Factor; Congenital Infantile Fibrosarcoma |
 | AAMIH | American Association For Maternal And Infant Health |
 | JDF | Juvenile Diabetes Foundation |
 | WITS | Women And Infants Transmission Study |
 | IRDS | Idiopathic Respiratory Distress Syndrome; Infant Respiratory Distress Syndrome |
 | CCD | Childhood Celiac Disease |
 | IRD | Infantile Refsum Disease; Isorhythmic Dissociation |
 | DDDI | Infant Defined Daily Dose |
 | CRD | Childhood Rheumatic Disease |
 | UKCCSG | United Kingdom Children's Cancer Study Group |