APA

Külpmann W. R., Buchholz R., Dyrssen C. & Ruschke D. (19900221). A comparison of reference method values for calcium, lithium and magnesium with method-dependent assigned values. : Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie.

Chicago

Külpmann W R, Buchholz R, Dyrssen C and Ruschke D. 19900221. A comparison of reference method values for calcium, lithium and magnesium with method-dependent assigned values. : Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie.

Harvard

Külpmann W. R., Buchholz R., Dyrssen C. and Ruschke D. (19900221). A comparison of reference method values for calcium, lithium and magnesium with method-dependent assigned values. : Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie.

MLA

Külpmann W R, Buchholz R, Dyrssen C and Ruschke D. A comparison of reference method values for calcium, lithium and magnesium with method-dependent assigned values. : Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie. 19900221.