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Results 1 - 2 of 2 for natural gas
  1. ... to actual blood oxygenation levels from arterial blood gas tests, which are considered more reliable. Researchers found ... An alternative to pulse oximeters An arterial blood gas test is more invasive and painful than using ...
  2. ... decibels (such as a subway, passing motorcycle, or gas lawnmower). Source: American Speech-Language-Hearing Association Sickle ... of sun damage and developing cancer. Melanin—the natural pigment in skin, hair, and eyes—protects skin ...