TY  - RPRT
TI  - On the calculation of reference change values, with examples from a long-term study.
AU  - J M Queraltó
AU  - J C Boyd
AU  - E K Harris
PY  - 1993
UR  - https://pubmed.ncbi.nlm.nih.gov/8330396/
ID  - 8330396
ER  -