title: Large drug firms narrow their therapeutic interests.
authors.forename: Asher
authors.initials: A
authors.lastname: Mullard
mesh_terms: D035843:Biomedical Research / Q000458:organization & administration / Q000639:trends; D055808:Drug Discovery / Q000458:organization & administration* / Q000639:trends; D004345:Drug Industry / Q000458:organization & administration* / Q000639:trends; D017598:Efficiency, Organizational; D006801:Humans