TY - GEN AU - IVANYI,J AU - TISZAI,A TI - [Observations on 300 cases of hepatitis] SN - 0018-0203 PY - 2002///0501 KW - Hepatitis KW - statistics & numerical data KW - Hepatitis A KW - Humans KW - Viral Vaccines N1 - Publication Type: Journal Article ER -