أرسل هذا في رسالة قصيرة: Cross-sectional and prospective associations between children's 24-h time use and their health-related quality of life: a compositional isotemporal substitution approach

             ___      _____    __   __   _    _   
    ___     / _ \\   / ____||  \ \\/ // | |  | || 
   /   ||  / //\ \\ / //---`'   \ ` //  | |/\| || 
  | [] || |  ___  ||\ \\___      | ||   |  /\  || 
   \__ || |_||  |_|| \_____||    |_||   |_// \_|| 
    -|_|| `-`   `-`   `----`     `-`'   `-`   `-` 
     `-`