TY - RPRT TI - Parametric methods for estimating covariate-dependent reference limits. AU - Arja Virtanen AU - Veli Kairisto AU - Esa Uusipaikka PY - 2004 DO - 10.1515/cclm.2004.124 UR - https://pubmed.ncbi.nlm.nih.gov/15327007/ ID - 15327007 ER -