TY - RPRT TI - Regression-based reference limits for urinary amino acids in a pediatric population. AU - Rafael Venta AU - Belén Prieto AU - Francisco V Alvarez PY - 2002 DO - 10.1515/cclm.2002.062 UR - https://pubmed.ncbi.nlm.nih.gov/12059080/ ID - 12059080 ER -