title: Letter to the editor: "Validating the requirement for beat-to-beat coupling of the Ca2+ clock and M clock in pacemaker cell normal automaticity".
authors.forename: Victor A
authors.initials: VA
authors.lastname: Maltsev
authors.forename: Tatiana M
authors.initials: TM
authors.lastname: Vinogradova
authors.forename: Michael D
authors.initials: MD
authors.lastname: Stern
authors.forename: Edward G
authors.initials: EG
authors.lastname: Lakatta
mesh_terms: D000200:Action Potentials / Q000187:drug effects / Q000502:physiology; D000818:Animals; D002118:Calcium / Q000502:physiology*; D002462:Cell Membrane / Q000187:drug effects / Q000502:physiology*; D002478:Cells, Cultured; D002614:Chelating Agents / Q000494:pharmacology; D004533:Egtazic Acid / Q000031:analogs & derivatives / Q000494:pharmacology; D006168:Guinea Pigs; D006329:Heart Conduction System / Q000502:physiology*; D008564:Membrane Potentials / Q000187:drug effects / Q000502:physiology*; D018408:Patch-Clamp Techniques; D015203:Reproducibility of Results; D012849:Sinoatrial Node / Q000166:cytology* / Q000187:drug effects / Q000502:physiology*; D019831:Sodium-Calcium Exchanger / Q000502:physiology
chemical_list: D002614:Chelating Agents; D019831:Sodium-Calcium Exchanger; D004533:Egtazic Acid; C025603:1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid; D002118:Calcium