%0 Journal Article %B BMJ Qual Saf %D 2012 %G eng %N 8 %P 641-648 %R 10.1136/bmjqs-2011-000541 %T Challenges of making a diagnosis in the outpatient setting: a multi-site survey of primary care physicians. %V 21 %1 https://www.ncbi.nlm.nih.gov/pubmed/22626738 %8 08/2012