Crossword clues for Cardiologist's abbr.:EKGCardiologist's abbr.DRSCardiologists, e.g.: Abbr.ECGCardiologist's concern: Abbr.ECGCardiologist's chart: Abbr.EKGCardiologist's instrument (Abbr.)EKGCardiologist's record: Abbr.DRSCardiologists, for example (Abbr.)EKGCardiologist's test: Abbr.