[A glance at the history of the Society of Internists in Bulgaria (on the 50th anniversary of its founding)].
D002031:Bulgaria; D049673:History, 20th Century; D007388:Internal Medicine / Q000266:history*; D012955:Societies, Medical / Q000266:history*
Pogled vŭrkhu istoriiata na Druzhestvoto na internistite v Bŭlgariia (po sluchaĭ 50 godini ot osnovavaneto mu).