Researchers face 'Catch-22' grants trap.
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D000818:Animals; D003163:Competitive Behavior; D005381:Financing, Organized; D051379:Mice; D008822:Mice, Transgenic; D009316:National Institutes of Health (U.S.); D017712:Peer Review, Research; D012106:Research / Q000191:economics / Q000639:trends; D012109:Research Support as Topic / Q000191:economics / Q000639:trends; D014481:United States