cardiothorathic surgery department -faculty of medecine-zagazig univeristy- Egypt, Zagazig,,, El Sharkia, Egypt
Amr El Sayed Tawfek, Zagazig, El Sharkia, Egypt
Faculity of medicine, Zagazig university, Zagazig, Zagazig, Egypt
Zagazig University Hospitals, Zagazig, Al Sharqia, Egypt
Faculty of Medicine Zagazig University, Zagazig, Sharkia, Egypt
faculty of medicine,zagazig university Egypt Ext. 002 K.Howida@yahoo.com, Zagazig, Egypt
Faculty of Medicine,Zagazig University, Zagazig, Egypt
Zagazig university hospital, Zagazig, Egypt
Mohamed Samy Abdalla, Zagazig, El sharkia, Egypt
Faculty of Medicine, Zagazig, Sharqia, Egypt