Monitoring of arterial stiffness indices by applanation tonometry and pulse wave analysis: Reproducibility at low blood pressures - Papaioannou, T.G.; Stamatelopoulos, K.S.; Gialafos, E.; Vlachopoulos, C.; Karatzis, E.; Nanas, J.; Lekakis, J. (Journal of Clinical Monitoring and Computing, 2004)