7Alvarado. APIC guideline for infection prevention and control in flexible endoscopy[J]. APIC, 2000, 28(2): 138-140.
8Bhumisirikul W, Bhumisirikul P, Pongchairerks P. Long-term storage of small surgical instruments in autoclaved packages[J]. Asian J Surg, 2003,26(4):202-204.