1. 1Blood Donations Urgently Needed to Support Tragedy Victims. Press release of America’s Blood Centers, 2001 September 11
2. 2America’s Blood Centers Releases Numbers from Last Week’s Blood Collections. Press release of America’s Blood Centers, 2001 September 19
3. Effect of a national disaster on blood supply and safety;Glynn;JAMA,2003
4. 4America’s Blood Centers Say Blood Supply Is Adequate for Now. Press release of America’s Blood Centers, 2001 September 12
5. Understanding Canadian student motivations and beliefs about giving blood;Hupfer;Transfusion,2005