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Ports TA, Srebro JP, Manubens SM, White N, Johnson E, Yock PG, Lo E.Ports TA, et al. Among authors: yock pg.Am Heart J. 1988 Mar;115(3):672-5. doi: 10.1016/0002-8703(88)90819-8.Am Heart J. 1988.PMID: 2964189No abstract available.