title: [Studies on the active principles of Ze-Qi (Euphorbia helioscopia L.), a drug used for chronic bronchitis (I) (author's transl)].
mesh_terms: D001991:Bronchitis / Q000188:drug therapy; D003460:Crystallization; D005419:Flavonoids / Q000302:isolation & purification*; D006801:Humans; D010946:Plants, Medicinal / Q000032:analysis*; D011794:Quercetin / Q000031:analogs & derivatives / Q000302:isolation & purification* / Q000627:therapeutic use
chemical_list: D005419:Flavonoids; D011794:Quercetin