title: Myocardial biopsy: when and how.
mesh_terms: D001706:Biopsy / Q000009:adverse effects / Q000379:methods*; D009202:Cardiomyopathies / Q000473:pathology; D003937:Diagnosis, Differential; D006084:Graft Rejection; D006321:Heart / Q000187:drug effects; D016027:Heart Transplantation; D006801:Humans; D009206:Myocardium / Q000473:pathology*; D010494:Pericarditis, Constrictive / Q000175:diagnosis