RT Journal Article SR Electronic T1 Nurses’ night shift performance improves through taking scheduled naps JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 23 OP 23 DO 10.1136/ebnurs-2019-103164 VO 24 IS 1 A1 Nazanin Izadi YR 2021 UL http://ebn.bmj.com/content/24/1/23.abstract AB