1998=32,3,2; 1999=34,4,2; 2000=36,4,Suppl.; 2001=38,4,Suppl.; 2002=40,4,Suppl.; 2003=42,4,Suppl.; 2004=44,4,Suppl.; 2005=46,3,Suppl.; 2006=48,4,Suppl.; 2007=50,3,Suppl.; 2008=52,4,Suppl.; 2009=54,3,Suppl.; 2010=56,3,Suppl. von: Annals of emergency medicine (ISSN: 0196-0644)