title: [SERUM HEPATITIS (STATISTICAL OBSERVATIONS AND FOLLOW-UP OF DONORS)].
mesh_terms: D001782:Blood Donors; D005500:Follow-Up Studies; D006509:Hepatitis B; D006515:Hepatitis B virus; D006801:Humans; D013223:Statistics as Topic
keywords: BLOOD DONORS; HEPATITIS, HOMOLOGOUS SERUM; STATISTICS