title: Aging and sinoatrial node dysfunction: musings on the not-so-funny side.
authors.forename: Haris M
authors.initials: HM
authors.lastname: Haqqani
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Kalman
mesh_terms: D000368:Aged; D000375:Aging; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D001683:Biological Clocks; D004195:Disease Models, Animal; D006168:Guinea Pigs; D006801:Humans; D012804:Sick Sinus Syndrome / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D012849:Sinoatrial Node / Q000503:physiopathology*