Incidence of activated protein C resistance caused by the ARG 506 GLN mutation in factor V in 113 unrelated symptomatic protein C-deficient patients - Gandrille, S; Greengard, J S; Alhenc-Gelas, M; Juhan-Vague, I; Abgrall, J F; Jude, B; Griffin, J H; Aiach, M (The French Network on the behalf of INSERM, 1995)