Berndt, Ernst; Cockburn, Iain; Grépin, Karen - In: PharmacoEconomics 24 (2006) 2, pp. 69-86
<Emphasis Type="Bold">Background: The apparent decrease in the rate of approval of new molecular entities has provoked extensive discussion and fears that the productivity of biopharmaceutical research and development has severely declined in recent years. <Emphasis Type="Bold">Objective: To investigate the extent to which traditional...</emphasis></emphasis>