Report of the RCOG Working Party on Prophylaxis Against Thromboembolism in Gynaecology and Obstetrics.
Royal College of Obstetricians and Gynaecologists (Great Britain).Working Party on Prophylaxis Against Thromboembolism in Gynaecology and Obstetrics.
London : Royal College of Obstetricians and Gynaecologists,
1995.