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Kelly RP, Gibbs HH, O'Rourke MF, Daley JE, Mang K, Morgan JJ, Avolio AP.Kelly RP, et al. Among authors: avolio ap.Eur Heart J. 1990 Feb;11(2):138-44. doi: 10.1093/oxfordjournals.eurheartj.a059669.Eur Heart J. 1990.PMID: 2107077