Commercial concentrates continued to be the mainstay of treatment at the Newcastle Haemophilia Centre in 1983. Linked evidence HCDO0000149_002 - Annual Return Forms from Haemophilia Centre no.140 regarding Haemophilia AB patients and carriers and von Willebrands Disease patients 10 October 1983 - 10 Oct 1983 Chronology Information Date: 1 January 1983 Chapter/issue Haemophilia Centres: Policies and Practice