Erratum to: Benefits of applying a proxy eligibility period when using electronic health records for outcomes research: a simulation study
Tzy-Chyi Yu, Huanxue Zhou

Abstract
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
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Taxonomy
TopicsChronic Disease Management Strategies · Nursing Diagnosis and Documentation · Primary Care and Health Outcomes
Erratum to: BMC Res Notes (2015) 8:229 DOI 10.1186/s13104-015-1217-6
After publication of the original article [1], Additional file 1 was updated with the following statement, located towards the end of the document:
“Reproduced with permission from: Mannino DM, Higuchi K, Yu T-C, Zhou H, Li Y, Tian H, et al. Economic burden of chronic obstructive pulmonary disease by presence of comorbidities. CHEST Journal. Published online February 12, 2015. doi:10.1378/chest.14-2434.”
This is to credit an earlier publication in which the same additional file was used. The updated additional file (Additional file 1) can be found below.
The reference list from the paper itself. Each links out to its DOI / PubMed record.
