"Every day, we encounter low-level laser used in security and scanning devices like you might find at a supermarket checkout counter. These lasers are safe. The word 'laser' is like the word 'transportation'. There are many types of lasers just as there are many types of transportation. The difference between Low-Level Laser used in health applications and High-Powered Laser used in industrial applications can be equated to the difference between a passenger car for transportation and a jumbo jet for crossing the continents."
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