أرسل هذا في رسالة قصيرة: Investigating the role of self-sacrificing prosociality in intragroup and intergroup contexts

  ______    ______    _____      ___     _    _   
 /_   _//  /_   _//  /  ___||   / _ \\  | || | || 
 `-| |,-    -| ||-  | // __    / //\ \\ | || | || 
   | ||     _| ||_  | \\_\ || |  ___  ||| \\_/ || 
   |_||    /_____//  \____//  |_||  |_|| \____//  
   `-`'    `-----`    `---`   `-`   `-`   `---`