Correlation between time lag of arterial-plethysmographic waveforms and systemic vascular resistance: a prospective study. - Muthuchellappan, Radhakrishnan; V. J., Ramesh; Ganne S., Umamaheswara Rao; K., Thennarasu; Jacob, Anjana; G., Sripathy; V., Bhadrinarayan; K., Mohanvelu (Journal of Medical Engineering & Technology, 2018)