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

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Text this: Envelope glycoproteins of Human Immunodeficiency Virus type 1 variants issued from mother-infant pairs display a wide spectrum of biological properties