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Yun KL, Rayhill SC, Niczyporuk MA, Fann JI, Zipkin RE, Derby GC, Handen CE, Daughters GT, Ingels NB Jr, Bolger AF, et al.Yun KL, et al. Among authors: handen ce.Circulation. 1991 Nov;84(5 Suppl):III112-24.Circulation. 1991.PMID: 1934399