A cost-effectiveness analysis of stays in intensive care units.
Intensive Care Med. 2001 Jan 1;27(1):146-53.
Intensive care unit length of stay: recent changes and future challenges.
Crit. Care Med. 2000 Oct 1;28(10):3465-73.
Crit. Care Med. 2009 May 1;37(5):1612-8.