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Garbe E, Suissa S.Garbe E, et al.JAMA. 2002 Dec 11;288(22):2822; author reply 2823-4. doi: 10.1001/jama.288.22.2822-jlt1211-1-10.JAMA. 2002.PMID: 12472312No abstract available.
Garbe E, LeLorier J, Boivin JF, Suissa S.Garbe E, et al.Lancet. 1997 Oct 4;350(9083):979-82. doi: 10.1016/S0140-6736(97)03392-8.Lancet. 1997.PMID: 9329512