Amruta Kabra1, Kajal Salekar2, Tanvi Kalanekar3, Kajal Salekar2. “Effect of Jack Knife Stretching Versus Proprioceptive Neuromuscular Facilitation (Hold Relax) Stretching Technique in Asymptomatic Individuals With Hamstring Tightness: A Randomized Clinical Trial”. Indian Journal of Forensic Medicine & Toxicology, vol. 14, no. 3, July 2020, pp. 122-6, doi:10.37506/ijfmt.v14i3.10338.