Hernández Cáceres, DrC. Jose Luis, et al. «Heart Rate Variability Analysis As a Tool for Assessing the Effects of Chi Meditation on Cardiovascular Regulation». Revista Cubana De Informática Médica, vol. 9, n.º 1, abril de 2017, https://revinformatica.sld.cu/index.php/rcim/article/view/214.