Balancing key stakeholder priorities and ethical principles to design a trial comparing intervention or expectant management for early-onset selective fetal growth restriction in monochorionic twin pregnancy: FERN qualitative study

在平衡关键利益相关者的优先事项和伦理原则的基础上，设计一项比较单绒毛膜双胎妊娠早期选择性胎儿生长受限的干预治疗与期待疗法的试验：FERN 定性研究