{TAIL ~ The present invention} is directed to a method of cooling skin as protection against thermal damage during radiation treatment, and includes the steps of thermally coupling a window to {HEAD ~ the skin}, and actively extracting heat from the window 
{ TAIL ~ The present invention } is directed to a method of cooling skin as protection against thermal damage during radiation treatment , and includes the steps of thermally coupling a window to { HEAD ~ the skin } , and actively extracting heat from the window
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