Venous tone in pregnancy.
D000293:Adolescent; D000328:Adult; D001775:Blood Circulation / Q000502:physiology*; D001795:Blood Pressure Determination; D005260:Female; D005542:Forearm / Q000098:blood supply; D006349:Heart Valve Diseases / Q000503:physiopathology; D006801:Humans; D010991:Plethysmography; D011247:Pregnancy / Q000502:physiology*; D014655:Vascular Resistance; D014680:Veins / Q000502:physiology*