Apparent Heterozygous Type II Protein C Deficiency Caused by the Factor V 506 Arg to GIn Mutation - Ireland, Helen; Bayston, Trevor; Thompson, Elizabeth; Adami, Antonella; Gonçalves, Cristina; Lane, David A; Finazzi, Guido; Barbui, Tiziano (Thrombosis and Haemostasis, 1995)