00493     2200169   4500001002100000005001500021008004100036035001900077041000700096082001600103090001600119245007800135260002200213300002500235650004800260990001500308INLIS00000000001426020210520152720210520|||||||||   |   |||   |||| ||   |   0010-0521014260  aen0 a615.371/WHO  a615.371/WHO00aWHO expert committee on biological standardization : Twenty second report  aGenevabWHOc1970  a134 p.: ill.; 24 cm. 0aVACCINES -- PHARMACOLOGY -- STANDARDIZATION  a53/LPPH/79