Individuals supplying blood or blood components for transfer to histocompatible recipients.
Blood Donor,Donor, Blood,Donors, Blood
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012924
Social Conditions
The state of society as it exists or in flux. While it usually refers to society as a whole in a specified geographical or political region, it is applicable also to restricted strata of a society.
Living Conditions,Condition, Living,Condition, Social,Conditions, Living,Conditions, Social,Living Condition,Social Condition
D014586
USSR
A country located from the Baltic and Black seas to the Pacific Ocean and, for a time including 15 Soviet Socialist Republics. The capital was Moscow.