Hemophilia B

Hemophilia B (also spelt Hæmophilia B or Haemophilia B) is a blood clotting disorder caused by a mutation of the Factor IX[?] gene. See haemophilia.

External Link

• http://www.yourgenesyourhealth.org/ygyh/mason/ygyh.html?syndrome=hemo§ion=whatisit&video=0