Ozkececi, G., Ulasli, S. S., Akci, O., Avsar, A., Unlu, M., & Onrat, E. (2016). The effect of sleep apnea severity on cardiac autonomic activity during night time in obstructive sleep apnea patients. São Paulo Medical Journal, 134(5), 430–436. Retrieved from https://periodicosapm.emnuvens.com.br/spmj/article/view/1143