http://www.fpnotebook.com/Hemeonc/Lab/WhtBldCl.htm
Normal Range
Age 6 Months to 2 years: 6.0 to 17.5 (Mean 11.0)
Age 4 Years: 5.5 to 15.5 (Mean 9.1)
Age 6 Years: 5.0 to 14.5 (Mean 8.5)
Age 8 to 16 Years: 4.5 to 13.5 (Mean 8.1)
Age over 21 Years: 4.5 to 11.0 (Mean 7.4)
For information on Shwachman-Diamond Syndrome check out Shwachman-Diamond America
