Students at the University of Belgrade and other regional medical faculties can often access the physical textbook or related study materials through their respective faculty libraries or the Faculty of Medicine, Belgrade website .

Note: I assume you mean the textbook/lecture notes by Professor/Dr. Seferović on internal medicine (Interna medicina / Internal Medicine). Below is a structured, ready-to-use short academic paper that summarizes key topics, clinical approaches, and recommendations; suitable for adaptation into a longer essay or submission. Replace citation placeholders with the exact bibliographic details of the Seferović PDF you have.

The book probably covers a wide range of topics within internal medicine, including but not limited to:

The good news is that legal digital access is expanding. Here are legitimate ways to obtain Interna Medicina Seferovic in electronic format: