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The Research Letter titled, “Prevalence of Inappropriateness of Parenteral Vitamin B12 Administration in Ontario, Canada,”1 published online July 15, 2019, contained an error in the Methods section regarding the dates of data analysis. The dates of data analysis were written to be from July 26, 2019, to November 22, 2019. The dates should be from July 26, 2018, to November 22, 2018. The dates have been corrected.
Error in Dates of Data Analysis in the Methods. JAMA Intern Med. 2019;179(10):1448. doi:10.1001/jamainternmed.2019.3987
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