Gerhardt , W., S. Hofvendahl, L. Ljungdahl, and J. Waldenström. “S-CK and S-CK B in Suspected Acute Myocardial Infarction: Routine Methodology and Diagnostic Strategy Evaluated by the Scandinavian Committee on Enzymes”. Upsala Journal of Medical Sciences, vol. 88, no. 3, Sept. 1983, pp. 193-9, doi:10.3109/03009738309178452.