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- Skip navigation An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs ...
- Allergens, like pollen, are nothing more than foreign plant antigens. When they get released into the air, you can see and hear the result.When allergens ...
- skip to main content Home Toggle navigation Tests and Treatments Pediatric Care Screening Diseases and Conditions Safety En Español Bone X-ray Bone x-ray ...
- Injury or infection of the cornea, the eye's front window, can cause lasting problems with vision.
- Skip to main content Transforming the understanding and treatment of mental illnesses. Search the NIMH Website: Información en español Celebrating 75 Years! ...
- Malignant tumors, as seen developing on the right vocal cord, are typically caused by tobacco use.
- Most cataracts are age related. They show up as a cloudy area in the lens.
- The two lungs are the primary organs of the respiratory system. They sit to the left and right of the heart, within a space called the thoracic cavity. ...
(National Library of Medicine) 
(National Institute of Mental Health) 