title: Adverse reactions to complementary and alternative medicine: ragweed's cousin, the coneflower (echinacea), is "a problem more than a sneeze".
authors.forename: Leonard
authors.initials: L
authors.lastname: Bielory
mesh_terms: D020900:Echinacea; D006801:Humans; D008517:Phytotherapy / Q000009:adverse effects*