<style face="normal" font="default" size="100%">Nurses' shift length and overtime working in 12 European countries: the association with perceived quality of care and patient safety.</style>

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0<style face="normal" font="default" size="100%">Nurses' shift length and overtime working in 12 European countries: the association with perceived quality of care and patient safety.</style><style face="normal" font="default" size="100%">Nurses' shift length and overtime working in 12 European countries: the association with perceived quality of care and patient safety.</style>