Dr. Elizana Petrela worked as a general practitioner in the emergency department at QSUT "Nënë Tereza" from 1994 to 1996. Since 1996, she has been a lecturer in the Department of Public Health at the Faculty of Medicine, specializing in biostatistics. She also lectures in Tetovë. Dr. Petrela completed her dissertation titled, "Statistics for Locagenoses at QSUT, 1995-1999" in 2003 and has attended various short training courses in Greece, Italy, Croatia, Israel, and Slovenia. She has written textbooks, and curricula for undergraduate and postgraduate programs in biostatistics for medical, dental, and pharmacy students. For six years, she led the statistics sector in the Public Health Department and now heads the statistics service at QSUT "Nënë Tereza," where she is bringing a new vision to the service. Dr. Petrela has also participated in numerous national and international workshops, conferences, and congresses, and has authored or co-authored many scientific articles and papers.