title: Circannual changes in ventricular function assessed by echocardiography.
abstract: Cardiac function may vary predictably along the 1-year scale. A circannual rhythm, more or less in phase is documented for 5 echocardiographic variables in clinically healthy Japanese adults.
authors.affiliation: Yamanashi Medical College, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Saito
authors.forename: K
authors.initials: K
authors.lastname: Tamura
authors.forename: D C
authors.initials: DC
authors.lastname: Hillman
authors.forename: G
authors.initials: G
authors.lastname: Cornélissen
authors.forename: F
authors.initials: F
authors.lastname: Halberg
mesh_terms: D000328:Adult; D004452:Echocardiography; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010507:Periodicity; D012621:Seasons; D016276:Ventricular Function / Q000502:physiology*