title: Concerns about relationship between the geometry of internal jugular vein during anti-G straining maneuver and gravity-induced loss of consciousness.
authors.forename: Yong-Jie
authors.initials: YJ
authors.lastname: Yao
authors.forename: Yao-Ming
authors.initials: YM
authors.lastname: Chang
mesh_terms: D002560:Cerebrovascular Circulation / Q000502:physiology; D018470:Gravity, Altered / Q000009:adverse effects*; D006801:Humans; D007601:Jugular Veins / Q000000981:diagnostic imaging* / Q000503:physiopathology; D015656:Respiratory Mechanics; D018570:Risk Assessment; D014463:Ultrasonography; D014474:Unconsciousness / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology