The study, published in the International Journal of Obstetrics and Gynaecology, also confirmed the importance of a stress-free pregnancy.
The study, published in the International Journal of Obstetrics and Gynaecology, also confirmed the importance of a stress-free pregnancy.
该研究发表于国际性妇产科学杂志上，同时也证实了怀孕期间没有压力的重要性。