أرسل هذا في رسالة قصيرة: Effects of tandem walk and cognitive and motor dual- tasks on gait speed in individuals with chronic idiopathic neck pain: a preliminary study

  ______     ___      _  _    _    _     _  _   
 /_   _//   / _ \\   | \| || | || | ||  | \| || 
 `-| |,-   / //\ \\  |  ' || | || | ||  |  ' || 
   | ||   |  ___  || | .  || | \\_/ ||  | .  || 
   |_||   |_||  |_|| |_|\_||  \____//   |_|\_|| 
   `-`'   `-`   `-`  `-` -`    `---`    `-` -`