RT Journal Article SR Electronic T1 Correction: Understanding stage of innovation of invasive procedures and devices: protocol for a systematic review and thematic analysis JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e057842corr1 DO 10.1136/bmjopen-2021-057842corr1 VO 12 IS 8 YR 2022 UL http://bmjopen.bmj.com/content/12/8/e057842corr1.abstract AB