title: FDA user fees and innovation.
authors: John
authors: J
authors: Somberg
mesh_terms: D004059:Diffusion of Innovation; D017277:Drug Approval; D004345:Drug Industry / Q000191:economics / Q000331:legislation & jurisprudence; D005249:Fees and Charges; D006801:Humans; D007880:Legislation, Drug; D012106:Research / Q000191:economics; D013997:Time Factors; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence*