Evaluation of long-term stability of monolithic 3D-printed robotic manipulator structures for minimally invasive surgery. - Yannick S. Krieger; Daniel Ostler; Korbinian Rzepka; Alexander Meining; Hubertus Feussner; Dirk Wilhelm; Tim C. Lueth (Int. J. Comput. Assist. Radiol. Surg., 2020)