Correction: Trials 23, 208 (2022)

https://doi.org/10.1186/s13063-022-06548-7

Following the publication of the original article [1], the authors have requested that we add the below text to the Funding section:

The project has received a research grant from the Instituto de Salud Carlos III, of the Ministry of Economy and Competitiveness (Spain), awarded in the 2019 call within the Action of the Health Strategy 2013-2016, within the National Programme of Research oriented to the Challenges of Society, within the National Plan for Technical, Scientific and Innovation Research 2013-2016, with reference PI19/00736, co-financed with ERDF funds from the European Union (European Regional Development Fund).

The original article has been corrected.