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宫腔镜诊治宫内节育器取出困难 [PDF]

open access: yes, 2007
孙南丁, 沈进, 董生伟, 陈丽玉
core  

[Pregnancy complicated by patent urachus: A case report]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Yang J, Zhang L, Zhang Y.
europepmc   +1 more source

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