Sanjaikumar D, Patil, A. and Hemanth G 2026. Formulation and evaluation of factorial design based sulfasalazine-loaded ethosomal gel for rheumatoid arthritis. Journal of Applied Pharmaceutical Research. 14, 4 (Jul. 2026), 210-223. DOI:https://doi.org/10.69857/joapr.v14i4.1973.