title: Procaine versus magnesium in cardioplegia solution. A prospective study.
mesh_terms: D002986:Clinical Trials as Topic; D006324:Heart Arrest, Induced / Q000379:methods*; D006801:Humans; D008278:Magnesium Sulfate; D011343:Procaine; D011446:Prospective Studies; D011897:Random Allocation
chemical_list: D011343:Procaine; D008278:Magnesium Sulfate