title: Letter: Digoxin therapy.
mesh_terms: D002118:Calcium / Q000032:analysis; D004077:Digoxin / Q000009:adverse effects / Q000378:metabolism* / Q000627:therapeutic use; D006801:Humans; D011188:Potassium / Q000032:analysis; D012463:Saliva / Q000032:analysis
chemical_list: D004077:Digoxin; D011188:Potassium; D002118:Calcium