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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.
There are 60,000 miles of blood vessels in every adult human.
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.