%0 Journal Article %B Postgrad Med J %D 2020 %I BMJ %N 1143 %P 55-58 %R 10.1136/postgradmedj-2020-137832 %T Analysis of lawsuits related to diagnostic errors from point-of-care ultrasound in internal medicine, paediatrics, family medicine and critical care in the USA %V 97 %8 05/2020