%0 Letter %T A comment to "The relationship between stone-free and patient position in retrograde intrarenal surgery: a randomized prospective study". %A Lu J %A He R %A Su L %A YaLan Y %A Wang Q %A Chi H %A Yang G %J World J Urol %V 42 %N 1 %D 2024 Jul 13 %M 39002020 %F 3.661 %R 10.1007/s00345-024-05089-9