@misc{indiciaecf49054c73d4, title = {Serum ionized calcium by specific ion electrode.}, author = {H D Schwartz and B C McConville and E F Christopherson}, year = {1971}, doi = {10.1016/0009-8981(71)90366-4}, url = {https://pubmed.ncbi.nlm.nih.gov/5544066/}, note = {Source identifier: 5544066} }