%0 Journal Article %B BMJ Open %D 2021 %N 4 %P e041817 %R 10.1136/bmjopen-2020-041817 %T Association between primary care physician diagnostic knowledge and death, hospitalisation and emergency department visits following an outpatient visit at risk for diagnostic error: a retrospective cohort study using medicare claims %V 11 %8 04/2021 %& e041817