The informed consent form of family members can be signed remotely electronically. According to Article 1 1 of People's Republic of China (PRC) Contract Law, the formation of a contract is not limited by form, that is, it can be oral, written or other forms. Therefore, in some cases, if all parties agree to the remote electronic signature, and the authenticity, integrity and traceability of the signature can be guaranteed, then the remote electronic signature is recognized as an effective signature form. Therefore, the informed consent of family members can be signed remotely electronically.