Validation study in four health-care databases: upper gastrointestinal bleeding misclassification affects precision but not magnitude of drug-related upper gastrointestinal bleeding risk
| Autor: | Valkhoff, Vera E., Coloma, Preciosa M., Masclee, Gwen M.C., Gini, Rosa, Innocenti, Francesco, Lapi, Francesco, Molokhia, Mariam, Mosseveld, Mees, Nielsson, Malene Schou, Schuemie, Martijn, Thiessard, Frantz, van der Lei, Johan, Sturkenboom, Miriam C.J.M., Trifirò, Gianluca |
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| Zdroj: | In Journal of Clinical Epidemiology August 2014 67(8):921-931 |
| Databáze: | ScienceDirect |
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