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. 2003 May 9;549(Pt 3):667–672. doi: 10.1113/jphysiol.2003.043976

Figure 2. Time dependence of IHERG block by 4-AP.

Figure 2

A, traces from an ‘envelope of tails’ protocol, in the absence (Ai) and presence (Aii) of 5 mm 4-AP. Lower traces represent the voltage protocol used. B, the mean (± s.e.m.) fractional block of IHERG with varying pulse duration (n = 5 cells). The τ for development of inhibition was 32.3 ± 6.4 ms (n = 5).