title: Catcher's crouch and rubella immunization.
mesh_terms: D001241:Aspirin / Q000627:therapeutic use; D002648:Child; D005684:Gait; D006801:Humans; D007719:Knee Joint; D008297:Male; D010146:Pain / Q000188:drug therapy; D012409:Rubella / Q000517:prevention & control; D012411:Rubella Vaccine / Q000009:adverse effects; D012412:Rubella virus; D014765:Viral Vaccines / Q000009:adverse effects*
chemical_list: D012411:Rubella Vaccine; D014765:Viral Vaccines; D001241:Aspirin