title: Emissary veins and neuroanatomic changes in space.
authors: Larry A
authors: LA
authors: Kramer
authors: Ashot E
authors: AE
authors: Sargsyan
authors: Khader M
authors: KM
authors: Hasan
authors: James D
authors: JD
authors: Polk
authors: Douglas R
authors: DR
authors: Hamilton
mesh_terms: D018480:Astronauts; D001927:Brain Diseases / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009900:Optic Nerve / Q000473:pathology*; D009915:Orbit / Q000473:pathology*; D010902:Pituitary Gland / Q000473:pathology*; D014893:Weightlessness