RT Journal Article SR Electronic T1 Nurses matter: more evidence JF BMJ Quality & Safety JO BMJ Qual Saf FD BMJ Publishing Group Ltd SP 1 OP 3 DO 10.1136/bmjqs-2019-009732 VO 29 IS 1 A1 Aiken, Linda H A1 Sloane, Douglas M YR 2020 UL http://qualitysafety.bmj.com/content/29/1/1.abstract AB