如果导致心动过缓的病因无法矫正——比如甲减、或某些药物的副作用——起搏器常常是最佳的选择。
If slow heartbeats (bradycardias) don't have a cause that can be corrected - such as low thyroid hormone levels or a drug side effect - doctors often treat them with a pacemaker.
科学家称这种作用为——“冰甲”，其对山峰达到最高值做出了无法估量的贡献。
The scientists call the effect ‘glacial-armoring’: an invaluable assist for peak performance.
目前为止，研究并非发现甲流疫苗对孕妇、多次妊娠过的孕妇产生有害作用，也没有发现对胚胎发育、孕妇生产、产后的有害作用。
To date, studies do not show harmful effects from the pandemic influenza vaccine with respect to pregnancy, fertility, or a developing embryo or fetus, birthing or post-natal development.
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