Who is responsible for the care of patients treated with warfarin therapy?

Objective: To identify potential weaknesses in the system of managing warfarin therapy.

Design, Participants And Setting: A structured interview-based study of 40 community-dwelling patients taking warfarin and with an international normalised ratio > or = 6.0 and 36 of their treating doctors (35 general practitioners and 1 specialist), conducted between July and November 2007.