[Report on a study trip in the Bulgarian People's Republic].
1969
E Mílek
UI
MeSH Term
Description
Entries
D002031
Bulgaria
A country in Southeastern Europe, bordering the Black Sea, between Romania and Turkey. The capital is Sofia.
D003141
Communicable Diseases
An illness caused by an infectious agent or its toxins that occurs through the direct or indirect transmission of the infectious agent or its products from an infected individual or via an animal, vector or the inanimate environment to a susceptible animal or human host.