standardized perennial rye grass pollenWHO ATC codeAvailable in 1 countries🇨🇦Canada4ALLERGENIC EXTRACTS - 7 GRASS MIXALLERGENIC EXTRACT - STANDARDIZED GRASS POLLEN - PERENNIAL RYESTANDARDIZED GRASS POLLEN - PERENNIAL RYEGRASS (100000 BAU/ML)See all standardized perennial rye grass pollen in Canada →