The use of routine blood counts.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001772:Blood Cell Count; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007494:Ireland; D008297:Male; D008875:Middle Aged; D010347:Patient Care Planning; D012189:Retrospective Studies