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

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Text this: Antiviral carboxylic acids and naphthoquinones from the stems of Rhinacanthus nasutus