Servais J, De Greef C, Dernier P
Acta Chir Belg. 1980 Jan-Feb;79(1):15-9.
Two hundred and forty-six patients, a total of 7,614 months of anticoagulant therapy, are studied for complications. Grave problems occurred 4 times (1.6%). The total of major and minor problems was as high as 18%.