title: False-negative CPK's.
mesh_terms: D000208:Acute Disease; D004796:Clinical Enzyme Tests; D003402:Creatine Kinase / Q000097:blood*; D005188:False Negative Reactions; D007527:Isoenzymes / Q000097:blood*; D009203:Myocardial Infarction / Q000175:diagnosis*
chemical_list: D007527:Isoenzymes; D003402:Creatine Kinase