TY  - RPRT
TI  - Hepatitis B: epidemiological, immunological, and serological considerations emphasizing mutation.
AU  - Marcelo El Khouri
AU  - Vera Aparecida dos Santos
PY  - 2004
DO  - 10.1590/s0041-87812004000400011
UR  - https://pubmed.ncbi.nlm.nih.gov/15361988/
ID  - 15361988
ER  -