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. 2001 Feb 15;531(Pt 1):235–244. doi: 10.1111/j.1469-7793.2001.0235j.x

Figure 2. Example of recordings in the three sets of conditions.

Figure 2

One minute time series of heart period (RR), systolic pressure (SP) and respiratory airflow (RESP) in one subject in control conditions (left), during α-blockade alone (centre) and during α-blockade plus angiotensin II (right). α-Blockade reduced average SP and RR, which were restored to control values after infusion of angiotensin II. Respiration was not altered in any of the conditions and respiration-related oscillations of RR and SP were always clearly visible.