005210000a22001450004500003000900000005001700009110008700026245010400113020001800217264004900235490003900284300000900323041000800332650003500340PH-MaWHO20241108112318.0  aWHO Expert Committee on Biological Standardization. Session (3rd : 1949 : London).  aExpert Committee on Biological Standardization : report on the third session, London, 2-7 May 1949.  a92-4-120002-2  aGeneva : bWorld Health Organization,c1950.  a(WHO technical report series ; 2).  a17p.  aeng  aBiological productsxStandards