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Comparison of second-trimester maternal serum free-beta-human chorionic gonadotropin and alpha-fetoprotein between normal singleton and twin pregnancies: a population-based study. [electronic resource] by
- Zheng, Ming-ming
- Hu, Ya-li
- Zhang, Chun-yan
- Ru, Tong
- Liu, Qi-lan
- Xu, Bi-yun
- Chen, Qi-guang
- Xu, Zheng-feng
- Zhang, Yin
- Zhong, Xiao-ling
Producer: 20100629
In:
Chinese medical journal vol. 123
Availability: No items available.
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