title: How natural is it for nature to help with major depressive disorder?
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Witkin
authors.forename: Xia
authors.initials: X
authors.lastname: Li
mesh_terms: D001688:Biological Products / Q000266:history / Q000627:therapeutic use*; D003865:Major Depressive Disorder / Q000188:drug therapy* / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D049690:History, Ancient; D006801:Humans
chemical_list: D001688:Biological Products