PT - JOURNAL ARTICLE AU - Robert E Burke AU - Perla J Marang-van de Mheen TI - Sustaining quality improvement efforts: emerging principles and practice AID - 10.1136/bmjqs-2021-013016 DP - 2021 Nov 01 TA - BMJ Quality & Safety PG - 848--852 VI - 30 IP - 11 4099 - http://qualitysafety.bmj.com/content/30/11/848.short 4100 - http://qualitysafety.bmj.com/content/30/11/848.full SO - BMJ Qual Saf2021 Nov 01; 30