用于孕妇经阴道行子宫颈内口环扎术的操作模型 (2020)
Keywords: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; PHYSICS; PLANETARIA; SEALS