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. 2006 Feb 10;6:23. doi: 10.1186/1471-2334-6-23

Table 1.

Demographics: Random Blood Donor Cohort

Average Donor Age 44 years
Male 252 (55%)
Female 207 (45%)
Blood Type Distribution in Donor Cohort

A 40% B 10%
AB 4% O 46%