Objective: to survey the normal values of pelvic inclination of external pelvimetry and to provide evidence so as to estimate dystocia risk index for antenatal care.
目的：测量骨盆倾斜度外测量正常值，为产前检查估计难产风险指数提供依据。
Objective: to survey the normal values of pelvic inclination of external pelvimetry and to provide evidence so as to estimate dystocia risk index for antenatal care.
目的：测量骨盆倾斜度外测量正常值，为产前检查估计难产风险指数提供依据。
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