SORU: parçanın anlam bütünlüğünü sağlamak için getirilebilecek cümleyi bulunuz
The body's tendency to reject organ transplants, attacking them as if they were dangerous foreign invaders, is a well-known process. However, more prevalent are auto immune diseases, in which the body's immune cells attack its own tissues. Auto immune diseases can effect a variety of organs. — According to statistics, conditions like these affect more than 50 million people in the United States.