Dr. Miroslav Harjaček is the Head of Division of Pediatric and Adolescent Rheumatology at the Children’s Hospital Srebrnjak, Zagreb, Croatia. He graduated in Pediatrics in 1992 (Children’s Hospital, Buffalo, NY, USA) and in Pediatric Rheumatology 1996 (Floating Hospital for Children at NEMC, Boston, MA, USA). In 1998, he obtained his PhD in Medical Sciences at the University of Zagreb. He became an Associate Professor of Pediatrics in 2009 at the Medical School Zagreb, Croatia. He is a Fellow of American College of Rheumatology (ACR), member of Pediatric Rheumatology European Society (PRES), and national coordinator of PRINTO (Pediatric International Trial Organization). In 2009 he joined the Children’s Hospital Srebrnjak, Zagreb, Croatia, and for the last seven years he has served as co-chairman for the International Summer School in Dubrovnik organized by IUC. Professor Miroslav Harjaček has published numerous papers and given a notable number of invited lectures on Pediatric Rheumatology. He is a reviewer for several international rheumatologic journals.