Gehan Hussein, Professor of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt (from 2009), she was graduated in 1990, got the master degree in pediatrics in 1994, and the MD degree in pediatrics in 1998. Worked in pediatric cardiology division (1995 till now). in addition to general pediatric experience, she has special interest in pediatric echocardiography for congenital and acquired heart diseases , post operative care for pediatric cases after palliative and /or corrective cardiac surgery as well as interventional cardiac catheterization (since 2005 ), worked as unit head of inpatient pediatric cardiology department in new children hospital, Cairo University (2016-2017) gehanha@hotmail.com.