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Breithardt G, Borggrefe M, Martinez-Rubio A, Budde T.Breithardt G, et al. Among authors: budde t.Eur Heart J. 1989 Sep;10 Suppl E:9-18. doi: 10.1093/eurheartj/10.suppl_e.9.Eur Heart J. 1989.PMID: 2680507Review.
Borggrefe M, Breithardt G, Podczeck A, Rohner D, Budde T, Martinez-Rubio A.Borggrefe M, et al. Among authors: budde t.Eur Heart J. 1989 Jul;10(7):591-601. doi: 10.1093/oxfordjournals.eurheartj.a059536.Eur Heart J. 1989.PMID: 2767072