The collective name for the republics of ESTONIA; LATVIA; and LITHUANIA on the eastern shore of the Baltic Sea. (Webster's New Geographical Dictionary, 1988, p111)

USSR (Union of Soviet Socialist Republics) cannot be provided as a medical definition, as it is not a medical term; it refers to a former political state that existed from 1922 until 1991 and was dissolved into multiple independent countries.

The Commonwealth of Independent States (CIS) is not a medical term or concept, but a regional organization that consists of post-Soviet states, and therefore, it does not have a medical definition.

I'm sorry for any confusion, but "Russia" is a country and not a medical term. Therefore, it doesn't have a medical definition.

"Eastern Europe," in a geomedical context, often refers to a region including countries that were once part of the Soviet Union or influenced by its culture and healthcare system, such as Russia, Ukraine, Belarus, and sometimes including countries in the Balkan Peninsula and Baltic states."

I'm sorry for any confusion, but "Kyrgyzstan" is not a medical term and does not have a medical definition; it is the name of a country located in Central Asia, known officially as the Kyrgyz Republic.

An ancient country in western Asia, by the twentieth century divided among the former USSR, Turkey, and Iran. It was attacked at various times from before the 7th century B.C. to 69 B.C. by Assyrians, Medes, Persians, the Greeks under Alexander, and the Romans. It changed hands frequently in wars between Neo-Persian and Roman Empires from the 3d to 7th centuries and later under Arabs, Seljuks, Byzantines, and Mongols. In the 19th century Armenian nationalism arose but suffered during Russo-Turkish hostilities. It became part of the Soviet Republic in 1921, with part remaining under Turkey. (Webster's New Geographical Dictionary, 1988)

Created 1 January 1993 as a result of the division of Czechoslovakia into the Czech Republic and Slovakia.

The geographical area of Asia comprising KAZAKHSTAN; KYRGYZSTAN; TAJIKISTAN; TURKMENISTAN; and UZBEKISTAN. The desert region of Kara Kum (Qara Qum) is largely in Turkmenistan and the desert region of Kyzyl Kum (Kizil Kum or Qizil Qum), is in Uzbekistan and Kazakhstan. (From Webster's New Geographical Dictionary, 1988, p233, 590, 636)