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Brown KA, Heller GV, Landin RS, Shaw LJ, Beller GA, Pasquale MJ, Haber SB.Brown KA, et al. Among authors: heller gv.Circulation. 1999 Nov 16;100(20):2060-6. doi: 10.1161/01.cir.100.20.2060.Circulation. 1999.PMID: 10562261Clinical Trial.