证据
- What are the benefits and harms of diet or exercise, or both, for preventing excessive weight gain in pregnancy?
- In pregnant women, what are the effects of vitamin D supplementation?
- Can prenatal vitamin supplementation help to prevent fetal loss?
- How does dietary education affect outcomes in pregnancy?
- How does counselling compare with usual care or less intensive interventions for helping women stop smoking during pregnancy?
- How does feedback compare with usual care or less intensive interventions for helping women stop smoking during pregnancy?
- How does health education or exercise compare with usual care or less intensive interventions for helping women stop smoking during pregnancy?
- What are the effects of breastfeeding support in healthy mothers with healthy term babies?
- How does universal screening for thyroid dysfunction during pregnancy compare with no screening for improving maternal and infant outcomes?
- How do universal and case-finding screening methods to identify thyroid dysfunction during pregnancy compare for improving maternal and infant outcomes?
- How does transcervical compare with transabdominal chorionic villus sampling for prenatal diagnosis?
- How does second trimester amniocentesis compare with no testing or early testing for prenatal diagnosis?
- In pregnant women, how does daily oral iron supplementation alone or in combination with folic acid affect maternal and infant outcomes?
- In women at or beyond term, how does induction of labor compare with expectant management for infant outcomes?
- In women at or beyond term, how does induction of labor compare with expectant management for maternal outcomes?
使用此内容应接受我们的免责声明。
