[1] World Federat Hemophilia, Montreal, PQ, Canada
[2] McMaster Univ, Hamilton, ON, Canada
[3] Cheikh Anta Diop Univ, Dakar, Senegal
[4] HCD Econ, London, England
[5] Med Data Solut & Serv MDSAS, London, England
[6] Christian Med Coll & Hosp, Vellore, Tamil Nadu, India
[7] Queens Univ, Kingston, ON, Canada
[8] Univ Med Ctr, Utrecht, Netherlands
[9] Ctr Dis Control & Prevent, Div Blood Disorders, Natl Ctr Birth Defects & Dev Disabil, Atlanta, GA USA