004980000a22001930004500003000900000005001700009020001800026264004900044700002100093700001700114700002300131710003100154245003000185300001000215041000800225650002700233650002400260650002000284PH-MaWHO20241108112407.0  a92-4-154631-X  aGeneva : bWorld Health Organization,c2004.  aMehta, Dinesh K.  aRyan, Rachel  aHogerzeil, Hans V.  aWorld Health Organization.  aWHO model formulary 2004.  a528p.  aeng  aFormulariesxStandards  aBiological products  aEssential drugs