TY - RPRT TI - Simplified estimation of age-specific reference intervals for skewed data. AU - E M Wright AU - P Royston PY - 1997 DO - 10.1002/(sici)1097-0258(19971230)16:24<2785::aid-sim797>3.0.co;2-z UR - https://pubmed.ncbi.nlm.nih.gov/9483714/ ID - 9483714 ER -