Peter Saunders, Vicky Tsipouri, Gregory J. Keir, Deborah Ashby, Marcus D. Flather, Helen Parfrey, Daphne Babalis, Elisabetta A. Renzoni, Christopher P. Denton, Athol U. Wells, Toby M. Maher
Trials. 2017; 18: 275. Published online 2017 Jun 15. doi: 10.1186/s13063-017-2016-2