C. O. Nneka, O. E. Eze, and N. M. Adaora, “FOOT ARCH INDEX AND QUADRICEPS ANGLE: A STUDY OF KNEE OSTEOARTHRITIS PATIENTS AT NATIONAL ORTHOPAEDICS HOSPITAL ENUGU”, International Journal of Interdisciplinary Research in Medical and Health Sciences (IJIRMHS), vol. 11, no. 2, pp. 24–34, Jul. 2024.