title: Free calcium in serum. I. Determination with the ion-specific electrode, and factors affecting the results.
mesh_terms: D000328:Adult; D001774:Blood Chemical Analysis / Q000592:standards; D001793:Blood Preservation; D001800:Blood Specimen Collection; D002118:Calcium / Q000097:blood* / Q000592:standards; D004566:Electrodes; D004983:Ethanolamines; D005069:Evaluation Studies as Topic; D005215:Fasting; D005260:Female; D006493:Heparin; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000097:blood; D008274:Magnesium; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration; D011188:Potassium; D011485:Protein Binding; D012964:Sodium; D013696:Temperature; D014357:Trypsin
chemical_list: D004983:Ethanolamines; D007477:Ions; D006493:Heparin; D012964:Sodium; D014357:Trypsin; D008274:Magnesium; D011188:Potassium; D002118:Calcium