Correction to: Trials 22, 607 (2021)

https://doi.org/10.1186/s13063-021-05492-2

Following the publication of the original article [1], we were notified of a typo in the name of the 4th author.

  • Originally published name: Class Olerud

  • Correct name: Claes Olerud

The original article has been corrected.