References
- Hallman N., Leppänen V. Flame-photometric Determinations of Potassium and Sodium in Biological Fluids. Suomen Kemistilehti B. 1949; 22: 55
- Leppänen V., Forsander O. Flame-photometric Determinations of Potassium and Sodium in Biological Fluids. Scandinav. J. Clin. & Lab. Investigation 1951; 3: 1
- Lovvry O. H., Hastings A. B. Histochemical Changes Associated with Aging. I. Methods and Calculations. J. Biol. Chem. 1942; 143: 257
- Wallace W. M., Holliday M., Cushman M., Elkington J. R. The Application of the Internal Standard Flame Photometer to the Analysis of Biologic Material. J. Lab. & Clin. Med. 1951; 37: 621