%0 Editorial %T Understanding three standard study designs for randomized controlled trials. %A Niimi N %A Yang A %A Sumie M %A Hayes J %A Maynes JT %A Aoyama K %J J Anesth %V 38 %N 4 %D 2024 Aug 24 %M 38913235 %F 2.931 %R 10.1007/s00540-024-03355-z