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|      \\  \ \\/ //  | |/ //   / _ \\    ____    
|  --  //   \ ` //   | ' //   | / \ ||  |    \\  
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|______//    |_||    |_|\_\\   \___//   |  __//  
`------`     `-`'    `-` --`   `---`    |_|`-`   
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發送短信 : Patterns of Overlap in Opinion Leadership and Interest for Selected Categories of Purchasing Activity