Text this: Relating pulse oximeter data to physiologically meaningful features

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\ \\ / //  \ \\/ // | \  / ||  |  ___||  /_   _// 
 \ \/ //    \ ` //  |  \/  ||  | ||__      | ||   
  \  //      | ||   | .  . ||  | ||__     _| ||   
   \//       |_||   |_|\/|_||  |_____||  /__//    
    `        `-`'   `-`  `-`   `-----`   `--`