<style face="normal" font="default" size="100%">An elusive balance--residents' work hours and the continuity of care.</style>

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0<style face="normal" font="default" size="100%">An elusive balance--residents' work hours and the continuity of care.</style><style face="normal" font="default" size="100%">An elusive balance--residents' work hours and the continuity of care.</style>