1. Bleeding and transfusion;Owings,2001
2. Comprehensive accreditation manual for hospitals: the official handbook,1998
3. Preoperative screening;Litaker;Med Clin North Am,1999
4. The case against routine preoperative laboratory testing;Smetana;Med Clin North Am,2003
5. The value of pre-operative screening investigations in otherwise healthy individuals;Turnbull;Arch Intern Med,1987