title: Rhythmic variations in medical monitoring tests.
abstract: Medical surveillance must be done with an awareness that virtually all physiological functions exhibit regularly recurring rhythmic variations. These rhythms, often termed "biological rhythms," and their biological effects are reviewed in this paper.
authors.affiliation: Division of Occupational and Environmental Medicine, University of California, San Francisco.
authors.forename: J
authors.initials: J
authors.lastname: LaDou
mesh_terms: D002940:Circadian Rhythm / Q000502:physiology*; D004784:Environmental Monitoring / Q000379:methods*; D006801:Humans; D016272:Occupational Health; D012016:Reference Values