OBITUARY: Ahmad Massoud (1943-2014)

Ahmad massoud, professor of immunology in school of medicine, tehran university of medical sciences died on august 18th, 2014, at the age of 71. we were terribly shocked when we heard the news of his sudden passing away. although he has been suffering from some illnesses since a year ago, he was working continuously until the day of his death, when he prepared himself to come to the university for regular activities in the school of medicine.