Frailty in intensive care medicine must be measured, interpreted and taken into account! - Jung, Christian; Guidet, Bertrand; Flaatten, Hans; the VIP study group; Fjølner, Jesper; Bruno, Raphael Romano; Kelm, Malte; Beil, Michael; Sigal, Sviri; Szczeklik, Wojciech; Leaver, Susannah; De Lange, Dylan W. (Intensive Care Medicine, 2023)