K. Rajkumari, A. Joy Singh, and L. Nilachandra Singh, “Comparison of the effectiveness between epidural methylprednisolone injection and intranasal calcitonin in reduction of back pain due to osteoporosis in postmenopausal patients: a randomized controlled trial”, Int J Clin Trials, vol. 7, no. 3, pp. 188–193, Jul. 2020.