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Results of time-frequency analysis of time series taken from each of 56 locations on the surface of the kidney of yet another rat. Left: cluster analysis. Right: TGF frequency as a function of time for each of the 56 efferent arterioles. Frequency is coded by color, using the same calibration bar as shown in Fig. 4. Each row corresponds to a single efferent arteriole the location of which is shown in Fig. 7. Numbers on right are arteriolar identifiers.
