Comparison of signals of pulse profile as skin surface vibrations, PPG and Doppler spectrogram for continuous blood pressure monitoringMeigas, Kalju; Kattai, Rain; Nigul, Mait; Lass, JaanusProceedings of 2nd European Medical & Biological Engineering Conference EMBEC'02. 12002 / p. 510-511 Pulse wave transit time in patients with hyperlipidaemia and hypertension [Electronic resource]Hlimonenko, Irina; Nigul, Mait; Meigas, Kalju; Vahisalu, ReinMedicon and Health Telematics 2004 "Health in the Information Society" : Xth Mediterranean Conference on Medical and Biological Engineering : July 31 - August 5, 2004, Ischia, Napeles-Italy2004 / [4] p. : ill. [CD-ROM]