1. Major ambulatory surgery of the ophthalmic patient;McCracken;Surg Clin North Am,1987
2. Ambulatory Surgery and the Basics of Emergency Surgical Care;Wolcott,1988
3. Ambulatory surgery in the United States, 2006;Cullen;Natl Health Stat Rep,2009
4. Hall, MJ, Schwartzman, A, Zhang, J, Liu, X. National Health Statistics Reports. (https://www.cdc.gov/nchs/data/nhsr/nhsr102.pdf).
5. Ambulatory surgery in an HMO: a study of costs, quality of care and satisfaction;Marks;Med Care,1980