Text this: Chemical constituents of the stem bark of Croton oblongifolius from Loei province

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