6Kearon C, Akl EA, Comerota AJ, et al. Antithrombotic therapy for VTE disease :Antithrombotic therapy and prevention of thrombosis. 9th ed:American college of chest physicians evidence-based clini- cal practice guidelines. Chest,2012,141 (2 Suppl) :419-494.
7Bates SM, Jaeschke R, Stevens, SM, et al. Diagnosis of DVT: an- tithrombotic therapy and prevention of thrombosis, 9th ed : american college of chest physicians evidence-based clinical practice. Chest, 2012,141 (2 Suppl) :351-418.
8FaIck Ytter Y, Francis CW, Johanson NA, et al. Prevention of VET in orthopedic surgery patients:antithmmbotic Therapy and preven-tion of thrombosis. 9th ed : American college of chest physicians ev- idence-based clinical practice guidelines. Chest,2012,141(2 Sup- pl) :278-325.
9Gould MK, Garcia DA, Wren SM, et al. Prevention of VET innon- orthopedic surgicalery patients: antithrombotic therapy and preven- tion of thrombosis. 9th ed : American college of chest physicians evi- dence-based clinical practice guidelines. Chest, 2012,141 ( 2 Sup- pl) :227-277.
10Agrawal D, Manzi SF, Gupta R, et al. Preprocedural fasting state and adverse in children undergoing procedural sedation and anal- gesia in a pediatric emergency department. Ann Emerg Med, 2003,42:636-646.