| D008722 |
Methods |
A series of steps taken in order to conduct research. |
Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique |
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| D003604 |
Czechoslovakia |
Created as a republic in 1918 by Czechs and Slovaks from territories formerly part of the Austro-Hungarian Empire. The country split into the Czech Republic and Slovakia 1 January 1993. |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001652 |
Bile Ducts |
The channels that collect and transport the bile secretion from the BILE CANALICULI, the smallest branch of the BILIARY TRACT in the LIVER, through the bile ductules, the bile ducts out the liver, and to the GALLBLADDER for storage. |
Bile Duct,Duct, Bile,Ducts, Bile |
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| D001660 |
Biliary Tract Diseases |
Diseases in any part of the BILIARY TRACT including the BILE DUCTS and the GALLBLADDER. |
Biliary Tract Disease,Disease, Biliary Tract,Diseases, Biliary Tract,Tract Disease, Biliary,Tract Diseases, Biliary |
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| D012189 |
Retrospective Studies |
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. |
Retrospective Study,Studies, Retrospective,Study, Retrospective |
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