Ljiljana Pejcic has over 30 years in medical clinical practice and experience in clinical research. In 1992 she finished the specialization in pediatrics with grade excellent at Faculty of Medicine, University of Nis and since then has been working and gaining extensive experience in pediatric cardiology. She is particularly skillful in echocardiography, ergometry and 24 h ECG Holter monitoring analysis. As a noninvasive pediatric cardiologist she is especially interested in the field of preventive cardiology. She is member of some very reputable professional organizations. In 2007 she gained the degree of Professor of Pediatrics at the Faculty of Medicine, University of Nis. To date she has published over 15 scientific papers on pediatrics, mainly in recognized international journals.