Rabilal, Melisha, et al. “Efficacy of the Otago Exercise Programme As a Supplementary Intervention to Exercise Classes: On Falls, Balance, Physical Function and Mobility in a Patient With Chronic Lower Back Pain: A Case Report”. Bangladesh Journal of Medical Science, vol. 19, no. 2, Jan. 2020, pp. 339-42, doi:10.3329/bjms.v19i2.45020.