title: Follow-on drugs and indications: the importance of incremental innovation to medical practice.
authors.affiliation: Tufts Center for the Study of Drug Development, Tufts University, Boston, MA 02111, USA. joshua.cohen@tufts.edu
authors.forename: Joshua
authors.initials: J
authors.lastname: Cohen
authors.forename: Kenneth
authors.initials: K
authors.lastname: Kaitin
mesh_terms: D035843:Biomedical Research / Q000379:methods* / Q000639:trends; D017277:Drug Approval; D015195:Drug Design; D004345:Drug Industry / Q000639:trends*; D015507:Drugs, Investigational / Q000494:pharmacology; D006801:Humans
chemical_list: D015507:Drugs, Investigational