00761nam a2200205 a 4500003000600000005001700006008004100023020001500064040002900079050002100108245008300129260004700212300002100259500007100280650003300351650003500384650003500419650002100454710008000475UkOxU20220404104718.0920430s1991    sz           i000 0 eng d  a9241544295  cALUPE UNIVERSITY COLLEGE  aRA401b.B56 199100aBiological substances :binternational standards and reference reagents : 1990  aGeneva :bWorld Health Organization,c1991  a105 p. ;c25 cm.  aPrepared by the WHO Expert Committee on Biological Standardization 0aBiological assayxStandards. 0aBiological productsxStandards 0aBiological reagentsxStandards 0aDrugsxStandards2 aWorld Health Organization.bExpert Committee on Biological Standardization.