A questionnaire was designed to elucidate factors influencing the initiation and duration of breast-feeding.

以问卷的方式来？解影响母乳哺育之起始与持续时间的相关因素。

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Conclusions: Using a cup instead of a bottle increases the extent and duration of breast feeding in preterm infants.

结论：使用杯子取代瓶喂牛奶可增加早产儿母乳哺育的程度以及持续时间。

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The effect of heat insulting feeder is to increase the feeding effect of the feeder through prolonging its solidification duration.

保温冒口的作用是通过延长冒口凝固时间来提高冒口的补缩效率。

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"It's kind of crazy that only 20% of people reach the recommended duration of breast-feeding, " says Flaherman.

CNN: How formula could increase breast-feeding rates