title: SEVERE ANEMIA AS A CAUSE OF CONGESTIVE HEART FAILURE. CASE REPORT.
mesh_terms: D000740:Anemia; D000752:Anemia, Pernicious; D019411:Clinical Laboratory Techniques; D005853:Geriatrics; D006333:Heart Failure; D006801:Humans; D014805:Vitamin B 12
chemical_list: D014805:Vitamin B 12
keywords: ANEMIA, PERNICIOUS; DIAGNOSIS, LABORATORY; GERIATRICS; HEART FAILURE, CONGESTIVE; VITAMIN B 12