title: Perspectives on the biology of growth factors.
authors.affiliation: Banting and Best Dept. of Med. Res., University of Toronto, Ontario.
authors.forename: I B
authors.initials: IB
authors.lastname: Fritz
mesh_terms: D000818:Animals; D006133:Growth Substances / Q000502:physiology*; D006728:Hormones / Q000502:physiology*; D006801:Humans; D008954:Models, Biological
chemical_list: D006133:Growth Substances; D006728:Hormones