MD, M.A. et al. 2021. Effect of Ice Massage to Head and Spine on Blood Pressure and Heart Rate Variability in Patients with Hypertension: a Pilot Study. International Journal of Therapeutic Massage & Bodywork. 14, 3 (Jul. 2021), 22–26. DOI:https://doi.org/10.3822/ijtmb.v14i3.573.