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Prenatal evaluation of the conus medullaris position in normal fetuses and fetuses with spina bifida occulta using three-dimensional ultrasonography |
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| Authors: | Ting Lei Hong-Ning Xie Ju Zheng Jie-Ling Feng Liu Du Nan Wang |
| Institution: | Department of Ultrasonic Medicine, Fetal Medical Centre, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China |
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