title: [Study of sources of contamination in blood sampling by trace element analysis].
mesh_terms: D000925:Anticoagulants / Q000032:analysis; D001800:Blood Specimen Collection / Q000295:instrumentation / Q000379:methods; D004866:Equipment Contamination; D006801:Humans; D014131:Trace Elements / Q000032:analysis / Q000097:blood*
chemical_list: D000925:Anticoagulants; D014131:Trace Elements