أرسل هذا في رسالة قصيرة: The hemodynamic management of 5177 neurosurgical and orthopedic patients who underwent surgery in the sitting or "beach chair" Position without incidence of adverse neurologic events

 __   __   _    _   __    __   _    _     ______  
 \ \\/ // | || | || \ \\ / // | || | ||  /_   _// 
  \   //  | || | ||  \ \/ //  | || | ||    | ||   
  / . \\  | \\_/ ||   \  //   | \\_/ ||   _| ||   
 /_//\_\\  \____//     \//     \____//   /__//    
 `-`  --`   `---`       `       `---`    `--`