目的探讨钙离子拮抗剂在早产治疗中的应用。方法采用前瞻性的研究方法,对心痛定治疗组（31例）进行疗效观察。结果心痛定组及安保组治......

Purpose: Cavernous haemangiomas of the uterine cervix are very rare and usually harmless. It is a benign tumor that may ......