ABSTRACT
The Balkan Union of Oncology (BUON) was founded in 1995. Eight Balkan countries are members of this Union. The official journal of the Union is the Journal of the Balkan Union of Oncology (J BUON), 11 volumes (40 issues) of which were published thus far. Meanwhile, J BUON is abstracted/indexed in some important databases. We analyzed the contribution of authors of the different countries in the content of 11 volumes of J BUON, consisting of 764 articles, 641 (83.9%) of which were written by authors from BUON countries, and 123 (16.1%) by authors from non-BUON countries. The 5 main columns (original articles, reviews, educational articles, clinical cases and special series) consisted of 558 (85.9%) articles. BUON countries varied greatly regarding the percentage of their contributions in these columns of J BUON. Greece, Serbia, Turkey, and Bulgaria contributed by 28.9%, 27.8%, 21.5% and 16.9%, respectively, while all other countries published less than 5% of these papers in J BUON.
