TY  - RPRT
TI  - Serum calcium ion activity. Some aspects on methodological differences and intraindividual variation.
AU  - L Larsson
AU  - S Ohman
PY  - 1979
DO  - 10.1016/s0009-9120(79)80141-1
UR  - https://pubmed.ncbi.nlm.nih.gov/487563/
ID  - 487563
ER  -