TY - RPRT TI - Determination of n-dimensional reference ellipsoids using patient data. AU - A J Naus AU - A Borst AU - P S Kuppens PY - 1982 DO - 10.1515/cclm.1982.20.2.75 UR - https://pubmed.ncbi.nlm.nih.gov/7069383/ ID - 7069383 ER -