TY - RPRT TI - Regional differences in infant immunization against hepatitis B: did intervention work? AU - J I Takayama AU - J P Iser AU - A Gandelman PY - 1999 DO - 10.1006/pmed.1998.0390 UR - https://pubmed.ncbi.nlm.nih.gov/10048107/ ID - 10048107 ER -