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

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發送短信 : Experiment 3: Bromination nd debromination of cholesterol (addition, elimination)