title: Tear fluid lysozyme concentration: guide to practolol toxicity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009113:Muramidase / Q000032:analysis*; D011217:Practolol / Q000506:poisoning*; D013666:Tears / Q000201:enzymology*
chemical_list: D009113:Muramidase; D011217:Practolol