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Smith S, Anthony L, Roberts LJ, Oates JA, Pincus T.Smith S, et al. Among authors: roberts lj.Ann Intern Med. 1990 Jan 1;112(1):66-8. doi: 10.7326/0003-4819-112-1-66.Ann Intern Med. 1990.PMID: 2293820No abstract available.
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