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Figure 6 Quantitative beta-galactosidase assays of catheter-based single-site LV injections in swine models of chronic myocardial ischemia (pigs 9 and 10). Injections into myocardium remote from the ischemic zone are distinguished from injections made into the ischemic lateral wall. A = anterior wall, L = lateral wall, P = posterior wall, S = septum. Numbers refer to the harvested tissue specimens, 1 being closest to the apex, and 4 being adjacent to the LV outflow tract and mitral valve ring.