Rassafian, Mehdi, et al. “The Effect of the Combination of Active Vestibular Intervention and Occupational Therapy on Balance in Children With Bilateral Spastic Cerebral Palsy: A Pilot Randomized Controlled Trial”. Iranian Journal of Child Neurology, vol. 14, no. 4, Oct. 2020, pp. 29-42, doi:10.22037/ijcn.v14i4.22545.