Inclusion Criteria:  Patients ≥12 years of age Diagnosis of moderate (FIX ≥1% and ≤2%) or severe (<1%) hemophilia B Parents or caregivers to patients with hemophilia 12-17 years of age  Inclusion Criteria - Healthcare worker:  - Doctors, nurses, social workers, and educators who participate in the care of hemophilia B patients  Exclusion Criteria:  Diagnosis of Hemophilia A Diagnosis of other non-Hemophilia B bleeding disorders  Exclusion Criteria - Healthcare worker:  Health care workers who do not participate in the care of hemophilia B patients