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Angiogenic factors in left ventricular myocardium by duration of intermittent hypoxia. Plot of relative amounts of HIF‐1 (a) VEGF‐A (b) and VEGF‐R2 (c) mRNA determined by RT‐PCR (N = 8–12/group). (a) *Different from normoxia (p = 0.001). (b) *Different from normoxia (p < 0.001). (c) *Different from normoxia (p = 0.001); # different from 1 week of IH (p = 0.02). Data are mean ± SEM
