Dear Dr Robertson,
For ethnic differences you might check the following:
# Tsianos et al.: Ethnic "hyperamylasaemia": clarification by isoamylase
analysis.
Clin Chim Acta 1982;124:13-21
# Rosalki: Genetic influences on diagnostic enzymes in plasma.
Enzyme 1988;39:95-109
Sincerely,
Dr. med. Michael Steiner
University of Rostock
Institute of Clinical Chemistry and Pathobiochemistry
Ernst-Heydemann-Str. 6
D-18057 Rostock
GERMANY
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