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Sippensgroenewegen A, Spekhorst H, van Hemel NM, Kingma JH, Hauer RN, de Bakker JM, Grimbergen CA, Janse MJ, Dunning AJ.Sippensgroenewegen A, et al. Among authors: janse mj.J Am Coll Cardiol. 1994 Dec;24(7):1708-24. doi: 10.1016/0735-1097(94)90178-3.J Am Coll Cardiol. 1994.PMID: 7963119Free article.