| http://www.w3.org/ns/prov#value | - Accordingly it is difficult to apply the above method to the determination of such antigen as fibrinogen (Fg), human chlorionic gonadotropin (hCG) or the like, since it requires complicated procedures for the preparation of its reagent and it is difficult to cause reproducible agglutination reaction if it is present in blood or urine which also contains various other substances capable of adversel
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