[Contemporary problems of blood donation].
D000367:Age Factors; D001782:Blood Donors; D001793:Blood Preservation; D001803:Blood Transfusion; D003710:Demography; D006509:Hepatitis B / Q000517:prevention & control*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D012959:Socioeconomic Factors; D014586:USSR
D006511:Hepatitis B Antigens
Sovremennye problemy donorstva