中国计划生育学杂志
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宫腔直视或超声引导负压吸宫术终止早期妊娠的临床效果比较
贵州省贵阳市妇幼保健院(550003)
Clinical effect compare of visual vacuum aspiration and ultrasound-guided vacuum aspiration for terminating early pregnancy
Guiyang Maternal and Child Health Care Hospital, Guiyang, Guizhou Province, 550003