In the ceremony, which was held with the presence of Public Relations Manager Mr. Abdul Wahab Haqhi and Director of Public Affairs Mr. Engineer Bahadur Mohammadi, Head of Service Department Mr. Mojtabi Arzoomand Khah and a group of employees and students active in holding the first international symposium on cell biology and tissue engineering, Sir The work of Dr. Farzaneh Najafi, Chairman and Mr. Dr. Mohammad Nabooni, Professor of the Faculty of Biological Sciences and President of the Congress, appreciated and thanked this active executive staff by presenting a plaque of appreciation.