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Fig. 4. Effects of angiotensin II (ANG II; 10-8 mol l-1)
before and after treatment with atropine (10-6 mol l-1)
and pertussis toxin (PTx; 10-11 mol l-1) on stroke
volume (VS) and stroke work (WS) in
isolated and perfused paced eel hearts. For details, see Materials and
methods. Percentage changes are shown as means ±
S.E.M. of four experiments for each drug.
*Significantly different from the control value
(P<0.05).
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