أرسل هذا في رسالة قصيرة: Powered Air Purifying Respirator (PAPR) restores the N95 face mask induced cerebral hemodynamic alterations among Healthcare Workers during COVID-19 Outbreak

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