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培美曲塞治疗吉非替尼失败后的肺腺癌的毒副反应（例）
The toxic side effects of pemetrexed as salvage therapy for patients with pulmonary adenocarcinoma after the failure of gefitinib (n)
| Toxic side effects | Classification of adverse events | |||
| Ⅰ | Ⅱ | Ⅲ | Ⅳ | |
| Neutropenia | 3 | 2 | 2 | 0 |
| Anemia | 4 | 1 | 1 | 0 |
| Thrombocytopenia | 2 | 2 | 1 | 0 |
| AST increased | 3 | 1 | 2 | 0 |
| Rash | 2 | 1 | 2 | 0 |
| Fatigue | 3 | 1 | 1 | 0 |
| Alopecia | 2 | 2 | 0 | 0 |
| Nausea | 2 | 1 | 0 | 0 |
| BUN increased | 1 | 1 | 0 | 0 |
