The case mix of ambulatory surgery as measured by ambulatory visit groups
1990 ◽
Vol 13
(1)
◽
pp. 33-45
◽
2009 ◽
Vol 181
(S 01)
◽
Keyword(s):
2011 ◽
Vol 127
(3)
◽
pp. peds.2010-2008d-peds.2010-2008d
◽