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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own
The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own
The relationship between the permissible exposure limit (PEL), the short-term exposure limit (STEL), ... The relationship between the permissible exposure limit (PEL), the short-term exposure limit (STEL), ...
The permissible exposure limit (PEL) and immediately dangerous to life and health (IDLH) ... The permissible exposure limit (PEL) and immediately dangerous to life and health (IDLH) ...
Video: Physiology of Asthma

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