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Figure 1: (a) A - Sensor, B - Reference patch and holder, sensor tube with a stopcock cap, C - Connecting cables from central venous pressure sensor to display monitor. (b) Noninvasive central venous pressure (Mespere VENUS 2000) display monitor and invasive central venous pressure display monitor

Figure 1: (a) A - Sensor, B - Reference patch and holder, sensor tube with a stopcock cap, C - Connecting cables from central venous pressure sensor to display monitor. (b) Noninvasive central venous pressure (Mespere VENUS 2000) display monitor and invasive central venous pressure display monitor