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			The diffusion of science driven drug discovery : organizational change in pharmaceutical research by Cockburn, Iain M Henderson, Rebecca Stern, Scott Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge, Mass : National Bureau of Economic Research, 1999 Availability: No items available. Save to lists Add to cart (remove)
			International knowledge flows : evidence from patent citations by Jaffe, Adam B Trajtenberg, Manuel Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge, Mass : National Bureau of Economic Research, 1998 Availability: No items available. Save to lists Add to cart (remove)
			How trade patterns and technology flows affect productivity growth by Keller, Wolfgang Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge, Mass. : National Bureau of Economic Research, 1999 Availability: No items available. Save to lists Add to cart (remove)

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