Fuest, K E;Lorenz, Marco;Grunow, Julius J;Weiss, Björn;Mörgeli, Rudolf;Finkenzeller, Sebastian;Bogdanski, Ralph;Heim, Markus;Kapfer, Barbara;Kriescher, Silja;Lingg, Charlotte;Martin, Jan;Ulm, Bernhard;Jungwirth, Bettina;Blobner, Manfred;Schaller, Stefan J.The Functional Trajectory in Frail Compared With Non-frail Critically Ill Patients During the Hospital Stay..Front Med (Lausanne).2021.8