TY - GEN AU - Crossley,P M AU - Winship,P R AU - Black,A AU - Rizza,C R AU - Brownlee,G G TI - Unusual case of haemophilia B SN - 0140-6736 PY - 1989///0531 KW - Child KW - Factor IX KW - genetics KW - Hemophilia B KW - Humans KW - Male KW - Mutation N1 - Publication Type: Case Reports; Letter UR - https://doi.org/10.1016/s0140-6736(89)92540-3 ER -