Nine Lancet journals are top of their categories for Impact Factor in the latest measurements. What is the value of Impact Factors? What do they capture, and what don’t they capture? Richard Horton, editor-in-chief of The Lancet, joins Gavin and Jessamy to discuss impact.
You can continue the conversation with Jessamy and Gavin on Twitter by following them at @JessamyBagenal and @GavinCleaver.