Heading back to the dentist for your cleaning or filling will look a lot different in this COVID-19 era. "We're at high risk, dental hygienists, the dentists," said dentist Stephen M. Miller. "We were ...
UV radiation is invisible to the eye and it is non-ionizing form of radiation in the 100 nm to 400 nm wavelength region of the electromagnetic spectrum. UV radiation is arbitrarily divided into UV-A ...
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