informed consent

例句：

1. 1. Before undergoing any surgery, the patient must provide informed consent.
   在做手术之前，患者必须提供知情同意。
2. 2. The doctor explained to the patient that informed consent was required for the procedure.
   医生向患者解释，为了进行该程序，需要获得知情同意。
3. 3. The patient's family had to obtain informed consent before they could proceed with the transplant.
   患者的家人在继续移植手术前必须获得知情同意。