Blood utilization patterns by age.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001803:Blood Transfusion / Q000706:statistics & numerical data*; D002648:Child; D002675:Child, Preschool; D003133:Commission on Professional and Hospital Activities; D003933:Diagnosis; D006801:Humans; D008875:Middle Aged; D010361:Patients / Q000145:classification; D014481:United States