Hemophilia B
From Wikipedia, the free encyclopedia.

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

The original article can be found at: http://en.wikipedia.org/wiki/Hemophilia_B.
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