المؤلفون: Ngo, T.D., Nguyen, T.H., Le, H.T., Pham, K.H.T., Nguyen, Y.B.T.

المصدر: International Journal of Gynecology & Obstetrics ; volume 119, issue S3 ; ISSN 0020-7292 1879-3479

الاتاحة: http://dx.doi.org/10.1016/s0020-7292(12)60926-6
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