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Janssen RS, St Louis ME, Satten GA, Critchley SE, Petersen LR, Stafford RS, Ward JW, Hanson DL, Olivo N, Schable CA, et al.Janssen RS, et al. Among authors: ward jw.N Engl J Med. 1992 Aug 13;327(7):445-52. doi: 10.1056/NEJM199208133270701.N Engl J Med. 1992.PMID: 1625734Free article.