The following are links to the 4 main published mortality studies:

• COSIT/UNDP: Iraq Living Conditions Survey 2004
• Iraq Body Count: A Dossier of Civilian Casualties in Iraq 2003–2005
• Iraqi Civilian War Casualties - Covering the period of March 21 - July 31, 2003 data collection by CIVIC Worldwide
• The Lancet Study: Mortality before and after the 2003 invasion of Iraq: cluster sample survey