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Stark KA, Yee GH, Roote CE, Williams EL, Zusman S, Hynes RO.Stark KA, et al. Among authors: zusman s.Development. 1997 Nov;124(22):4583-94. doi: 10.1242/dev.124.22.4583.Development. 1997.PMID: 9409675
Li X, Graner MW, Williams EL, Roote CE, Bunch TA, Zusman S.Li X, et al. Among authors: zusman s.Development. 1998 Feb;125(4):701-11. doi: 10.1242/dev.125.4.701.Development. 1998.PMID: 9435290