A Comparative Study on Comorbidity Measurements with Lookback Period using Health Insurance Database: Focused on Patients Who Underwent Percutaneous Coronary Intervention.
Kyoung Hoon Kim, Lee Su Ahn
J Prev Med Public Health. 2009;42(4):267-273.     DOI: https://doi.org/10.3961/jpmph.2009.42.4.267
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