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Hobbie L, Estelle M.Hobbie L, et al. Among authors: estelle m.Plant J. 1995 Feb;7(2):211-20. doi: 10.1046/j.1365-313x.1995.7020211.x.Plant J. 1995.PMID: 7704045Free article.
Cernac A, Lincoln C, Lammer D, Estelle M.Cernac A, et al. Among authors: estelle m.Development. 1997 Apr;124(8):1583-91. doi: 10.1242/dev.124.8.1583.Development. 1997.PMID: 9108374