Maghroori, Razieh, et al. “Phonophoresis Plus Topical Nitroglycerin Versus Hydrocortisone for the Management of Plantar Fasciitis: A Randomized Controlled Trial: ”. Galen Medical Journal, vol. 10, Oct. 2021, p. e2072, doi:10.31661/gmj.v10i.2072.