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           _    _     _  __    ______    ______  
    ___   | || | ||  | |/ //  /_   _//  /_   _// 
   /   || | || | ||  | ' //    -| ||-     | ||   
  | [] || | \\_/ ||  | . \\    _| ||_    _| ||   
   \__ ||  \____//   |_|\_\\  /_____//  /__//    
    -|_||   `---`    `-` --`  `-----`   `--`     
     `-`

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Text this: THERAPEUTIC PHOTOACTIVATION USING UPCONVERSION NANOPARTICLES