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Fig. 3. Effects of bolus intra-arterial injections of ET-1 on the maximum change in
(A) total cardiac output
(
tot), (B) heart rate
(fH), (C) total stroke volume
(VStot) and (D)
pul/
sys
as a function of the amount of peptide injected. Data points show means
± S.E.M. for seven individual experiments. The asterisks
denote a significant difference (P<0.05) from the pre-injection
value.