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Results 1 - 2 of 2 for Hydrogen
  1. Tobacco and chemicals (image) 
    ... ammonia, carbon dioxide, carbon monoxide, propane, methane, acetone, hydrogen cyanide and various carcinogens. Other chemicals that are ...
    https://medlineplus.gov/ency/imagepages/17193.htm - Medical Encyclopedia
  2. Hairy Tongue (VisualDX)  
    Tongue Disorders/Images ... Tongue Disorders ... VisualDX ... Hairy tongue, also known as black tongue, is a harmless condition involving the accumulation of keratin ( ...
    https://www.skinsight.com/.../adult/hairy-tongue?Imiw9cApl - External Health Links