PT - JOURNAL ARTICLE AU - Ranji, Sumant R. AU - Thomas, Eric J TI - Research to improve diagnosis: time to study the real world AID - 10.1136/bmjqs-2021-014071 DP - 2022 Apr 01 TA - BMJ Quality & Safety PG - 255--258 VI - 31 IP - 4 4099 - http://qualitysafety.bmj.com/content/31/4/255.short 4100 - http://qualitysafety.bmj.com/content/31/4/255.full SO - BMJ Qual Saf2022 Apr 01; 31