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- [3] DETERMINATION OF SODIUM, POTASSIUM AND CALCIUM IN URINE WITH A FILTER FLAME PHOTOMETER ZEITSCHRIFT FUR KLINISCHE CHEMIE UND KLINISCHE BIOCHEMIE, 1970, 8 (03): : 241 - &
- [9] IMPROVED FLAME PHOTOMETER FOR SODIUM AND POTASSIUM ANALYSES AMERICAN JOURNAL OF DISEASES OF CHILDREN, 1949, 77 (01): : 104 - 104