TY - GEN AU - King,R A TI - Acquired inhibitors to factor IX SN - 0028-4793 PY - 1970///0922 KW - Antibodies KW - Cross Reactions KW - Factor IX KW - analysis KW - Hemophilia B KW - immunology KW - Humans KW - Transfusion Reaction N1 - Publication Type: Journal Article UR - https://doi.org/10.1056/NEJM197009032831020 ER -