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Silber JH, Romano PS, Rosen AK, Wang Y, Even-Shoshan O, Volpp KG.Silber JH, et al. Among authors: rosen ak.Med Care. 2007 Oct;45(10):918-25. doi: 10.1097/MLR.0b013e31812e01cc.Med Care. 2007.PMID: 17890988