http://www.eanm.org/publications/guidelines/
http://www.eanm.org/esmit/level-1/
https://humanhealth.iaea.org/HHW/NuclearMedicine/index.html
http://www.zdravlje.gov.rs/showpage.php?id=145
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4519811/
https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2014:013:0001:0073:EN:PDF
http://www.srbatom.gov.rs/srbatomm/eu-legislation/?lang=en
