T, P.R. et al. 2022. Determining the Efficacy and Safety of Duloxetine and Gabapentin in Pain Reduction on Knee Osteoarthritis Patients – An Observational Study. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN). 15, 5 (Oct. 2022), 6154–6160. DOI:https://doi.org/10.37285/ijpsn.2022.15.5.7.