RT Journal Article SR Electronic T1 Use of optimised dual statistical process control charts for early detection of surgical site infection outbreaks JF BMJ Quality & Safety JO BMJ Qual Saf FD BMJ Publishing Group Ltd SP 517 OP 520 DO 10.1136/bmjqs-2019-010586 VO 29 IS 6 A1 Arthur W Baker A1 Nicole Nehls A1 Iulian Ilieş A1 James C Benneyan A1 Deverick J Anderson YR 2020 UL http://qualitysafety.bmj.com/content/29/6/517.abstract AB