Do clinicians understand the size of treatment effects? A randomized survey across 8 countries

Bradley C. Johnston, Pablo Alonso-Coello, Jan O. Friedrich, Reem A. Mustafa, Kari A.O. Tikkinen, Ignacio Neumann, Per O. Vandvik, Elie A. Akl, Bruno R. Da Costa, Neill K. Adhikari, Gemma Mas Dalmau, Elise Kosunen, Jukka Mustonen, Mark W. Crawford, Lehana Thabane, Gordon H. Guyatt