%0 Journal Article %B Int J Qual Health Care %D 2009 %G eng %N 5 %P 316-20 %R 10.1093/intqhc/mzp034 %T Medication errors: how reliable are the severity ratings reported to the national reporting and learning system? %V 21 %1 https://www.ncbi.nlm.nih.gov/pubmed/19679598 %8 10/2009