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Seiler, C; Fleisch, M; de Marchi, Stefano F.; Billinger, M; Wahl, A; Eberli, F R; Garachemani, A R; Meier, B (1998). Functional assessment of collaterals in the human coronary circulation. Seminars in interventional cardiology : SIIC, 3(1), pp. 13-20.
