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Cover of The nursing mother's herbal

The nursing mother's herbal

by Sheila Humphrey

2003 355 pages eng

"The respiratory system brings us the oxygen we need to live. Without even thinking, we take a breath every few seconds. Just as regularly, we exhale carbon dioxide. The nose, the throat, and the lungs all work together to keep us breathing. The respiratory system also helps protect us from germs an…

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