title: Heart rate variability during the 10-day Bulgarian-Russian space flight onboard the MIR station.
authors.affiliation: Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Sofia, Bulgaria.
authors.forename: I
authors.initials: I
authors.lastname: Stoilova
authors.forename: T
authors.initials: T
authors.lastname: Zdravev
authors.forename: T
authors.initials: T
authors.lastname: Yanev
authors.forename: S
authors.initials: S
authors.lastname: Zdraveva
mesh_terms: D002031:Bulgaria; D002940:Circadian Rhythm / Q000502:physiology*; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D007391:International Cooperation; D012426:Russia; D018531:Spacecraft; D014893:Weightlessness