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Sugrue DD, Vlietstra RE, Hammes LN, Holmes DR Jr.Sugrue DD, et al.Eur Heart J. 1987 Jul;8(7):697-701. doi: 10.1093/eurheartj/8.7.697.Eur Heart J. 1987.PMID: 2958279
Sugrue DD, Holmes DR Jr, Smith HC, Reeder GS, Lane GE, Vlietstra RE, Bresnahan JF, Hammes LN, Piehler JM.Sugrue DD, et al.Br Heart J. 1986 Jul;56(1):62-6. doi: 10.1136/hrt.56.1.62.Br Heart J. 1986.PMID: 2942160Free PMC article.