title: Introduction: what is TGF-beta?
authors.affiliation: Laboratory of Chemoprevention, National Cancer Institute, Bethesda, MD 20892.
authors.forename: M B
authors.initials: MB
authors.lastname: Sporn
authors.forename: A B
authors.initials: AB
authors.lastname: Roberts
mesh_terms: D006801:Humans; D016212:Transforming Growth Factor beta / Q000737:chemistry / Q000502:physiology / Q000627:therapeutic use
chemical_list: D016212:Transforming Growth Factor beta