TY - GEN AU - Schettini,F AU - De Mattia,D AU - Altomare,M AU - Montagna,O TI - Post-natal development of factor IX SN - 0001-656X PY - 1980///0616 KW - Antigens KW - analysis KW - Factor IX KW - immunology KW - Humans KW - Immunoelectrophoresis, Two-Dimensional KW - Infant, Newborn KW - Vitamin K KW - pharmacology N1 - Publication Type: Journal Article UR - https://doi.org/10.1111/j.1651-2227.1980.tb07029.x ER -