%J BMJ
%A Brennan C Kahan
%A Edmund Juszczak
%A Elaine Beller
%A Megan Birchenall
%A An-Wen Chan
%A Sophie Hall
%A Paul Little
%A John Fletcher
%A Robert M Golub
%A Beatriz Goulao
%A Sally Hopewell
%A Nazrul Islam
%A Merrick Zwarenstein
%A Diana Elbourne
%A Alan Montgomery
%T Guidance for protocol content and reporting of factorial randomised trials: explanation and elaboration of the CONSORT 2010 and SPIRIT 2013 extensions
%I BMJ
%L discovery10204508
%C England
%V 388
%O © The Author 2025. This is an Open Access article distributed in accordance with the
terms of the Creative Commons Attribution (CC BY 4.0) license
(http://creativecommons.org/licenses/by/4.0/).
%D 2025