| 历史版本 | 注册号 | 注册题目 | 研究类型 | 注册时间 |
|---|---|---|---|---|
| 历史版本 | ChiCTR2100047785 |
Acute care surgery during COVID19 pandemic: comparison with a control period
Department of Surgery. Complejo Hospitalario Universitario de VIgo |
观察性研究 | 2021/06/26 |
| 历史版本 | ChiCTR2000033052 |
Acute Care Surgery during novel coronavirus pneumonia (COVID-19) pandemic in Spain
Oscar Cano-Valderrama |
观察性研究 | 2020/05/19 |