Changes of epicardial fat thickness after laparoscopic sleeve gastrectomy: a prospective study oleh Ahmed Abdallah Salman, Mohamed Abdalla Salman, Ahmed Soliman, Ahmed Youssef, Safa Labib, Mona Youssry Helmy, Mohamed A. Marie, Mohamed Shawkat, Amir Mostafa, Mohamed Sabry Tourky, Mohamed D. Sarhan, Mohamed Gamal Qassem, Hossam El-Din Shaaban, Mahmoud Gouda Omar, Tarek Elsayed Abouelregal