發送短信 : Frequent cases of RAS-mutated down syndrome acute lymphoblastic leukaemia lack JAK2 mutations

           __   __    ______     ___     __   _   
    ___    \ \\/ //  /_   _//   / _ \\  | || | || 
   /   ||   \ ` //   `-| |,-   | / \ || | '--' || 
  | [] ||    | ||      | ||    | \_/ || | .--. || 
   \__ ||    |_||      |_||     \___//  |_|| |_|| 
    -|_||    `-`'      `-`'     `---`   `-`  `-`  
     `-`