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| Yongfei Wang | Center for Outcomes Research and Evaluation Yale-New Haven Hospital New Haven CT. |
| Yongfei Wang | Department of Internal Medicine Yale University New Haven CT. |
| Jeptha P Curtis | Center for Outcomes Research and Evaluation Yale-New Haven Hospital New Haven CT. |
| Jeptha P Curtis | Department of Internal Medicine Yale University New Haven CT. |
| Ulf Dahlstr??m | Medicine and Caring Sciences Linkoping University Linkoping Sweden. |