title: The effect of preservatives and dilution on the deterioration of Russian thistle (Salsola pestifer), a pollen extract.
mesh_terms: D004306:Dose-Response Relationship, Immunologic; D005990:Glycerol / Q000494:pharmacology; D006801:Humans; D010636:Phenols / Q000494:pharmacology; D010936:Plant Extracts / Q000276:immunology*; D011058:Pollen; D011309:Preservation, Biological; D011852:Radioallergosorbent Test; D012709:Serum Albumin / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology; D013696:Temperature; D013997:Time Factors
chemical_list: D010636:Phenols; D010936:Plant Extracts; D012709:Serum Albumin; D012965:Sodium Chloride; D005990:Glycerol