| http://www.w3.org/ns/prov#value | - The amounts of the numerous kinds of inorganic elements present in several samples of pharmaceuticalheparin showed an approximate correlation with the amounts of such elements present in human bloodserum or seawater (as illustrated by Fig. 1); this circumstance equally seems to apply to heparins fromdifferent manufacturers, and following the conventional partial single counterion enrichment of hep
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