Correction

Following publication of our article [1], it has come to our attention that Laura Martínez García’s surname was displayed incorrectly. We publish this correction to update the author list, which is as follows:

Pablo Alonso-Coello, Alonso Carrasco-Labra, Romina Brignardello-Petersen, Ignacio Neumann, Elie A Akl, Xin Sun, Bradley C Johnston, Matthias Briel, Jason W Busse, Demián Glujovsky, Carlos E Granados, Alfonso Iorio, Affan Irfan, Laura Martínez García, Reem A Mustafa, Anggie Ramirez-Morera, Iván Solà, Kari A O Tikkinen, Shanil Ebrahim, Per O Vandvik, Yuqing Zhang, Anna Selva, Andrea J Sanabria, Oscar E Zazueta, Robin W M Vernooij, Holger J Schünemann and Gordon H Guyatt.