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Carreras LO, Defreyn G, van Houtte E, Vermylen J, van Assche A.Carreras LO, et al.Lancet. 1981 Feb 21;1(8217):442. doi: 10.1016/s0140-6736(81)91822-5.Lancet. 1981.PMID: 6110069No abstract available.