Correction: Shorter and sweeter: the 16-item version of the SRS questionnaire shows better structural validity than the 20-item version in young patients with spinal deformity

Mannion, A F; Elfering, A; Fekete, T F; Harding, I J; Monticone, M; Obid, P; Niemeyer, T; Liljenqvist, U; Boss, A; Zimmermann, L; Vila-Casademunt, A; Pérez-Grueso, F J Sánchez; Pizones, J; Pellisé, F; Richner-Wunderlin, S; Kleinstück, F S; Obeid, I; Boissiere, L; Alanay, A; Bagó, J