title: Levels of trace elements during and after cardiopulmonary bypass operations.
mesh_terms: D002118:Calcium / Q000097:blood; D002315:Cardiopulmonary Bypass; D003300:Copper / Q000097:blood; D004912:Erythrocytes / Q000378:metabolism; D006801:Humans; D008274:Magnesium / Q000097:blood; D014131:Trace Elements / Q000097:blood*; D015032:Zinc / Q000097:blood
chemical_list: D014131:Trace Elements; D003300:Copper; D008274:Magnesium; D015032:Zinc; D002118:Calcium