title: [On three necessities in the procedure of preparation of new Chinese herbal drugs].
authors.forename: L
authors.initials: L
authors.lastname: Du
authors.forename: L
authors.initials: L
authors.lastname: Xu
authors.forename: S
authors.initials: S
authors.lastname: Yang
mesh_terms: D000818:Animals; D017277:Drug Approval; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D006801:Humans
chemical_list: D004365:Drugs, Chinese Herbal