The SCIentinel study--prospective multicenter study to define the spinal cord injury-induced immune depression syndrome (SCI-IDS)--study protocol and interim feasibility data. - Kopp MA; Druschel C; Meisel C; Liebscher T; Prilipp E; Watzlawick R; Cinelli P; Niedeggen A; Schaser KD; Wanner GA; Curt A; Lindemann G; et al. (BMC neurology, 2013)