title: [The problem of multiple blood extractions].
mesh_terms: D000328:Adult; D000368:Aged; D001810:Blood Volume; D001815:Bloodletting / Q000009:adverse effects*; D005260:Female; D006331:Heart Diseases / Q000503:physiopathology*; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D006454:Hemoglobins
vernacular_title: La problemática de las extracciones múltiples de sangre.