Prognostic impact of previous percutaneous coronary interventions on coronary artery bypass graft surgery: A multicentric analysis from the German Federal State North-Rhine-Westphalia

Massoudy P, Thielmann M, Lehmann N, Marr A, Kleikamp G, Maleszka A, Zittermann A, Korfer R, Radu M, Krian A, Litmathe J, Gams E, Sezer O, Scheld H, Schiller W, Welz A, Dohmen G, Autschlbach R, Slottosch I, Wahlers T, Neuhauser M, Jockel KH, Jakob H