The SLE (Spring Loaded Expander) is an orthodontic device ...
A palatal expander, also known as a rapid palatal expander, ...
The handrim is an essential part of a wheelchair for it is ...
A fine needle used for injecting some medicinal liquid into ...
The gastric band is an inflatable silicone device that is ...
The aortic valve is the heart's main doorway between the ...
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