| 标题 |
A new method of classifying prognostic comorbidity in longitudinal studies: development and validation |
| 网址 | |
| DOI | |
| 其它 |
期刊:Journal of chronic diseases 作者:Charlson ME; Pompei P; Ales KL; MacKenzie CR 出版日期:1987/01/01 |
| 求助人 | |
| 下载 |
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(2025-6-4)