Gerritsma-Bleeker, C. L. E., Heeg, M., & Vos-Niel, H. (1997). Ambulation with the reciprocating-gait orthosis: Experience in 15 children with myelomeningocele or paraplegia. Acta Orthopaedica, 68(5), 470–473. https://doi.org/10.3109/17453679708996265