In 1977 cryoprecipitate and NHS factor concentrates were both used at Treloar's, as well as four commercial products. Linked evidence HCDO0001131 - Survey of Patients Treated at Haemophilia Centres in the UK - Annual Returns for 1977 - Treloar Haemophilia Centre - 01 Jan 1977 Chronology Information Date: 1 January 1977 Chapter/issue Treloars