TY - RPRT TI - Exploring Endothelial Function Risk Factors and Optic Disc Edema Changes During Strict 6ยบ Head-Down Tilt Bed Rest AU - SR Zwart AU - SM Smith AU - B Macias AU - M Melin AU - E Bershad AU - Mi Young UR - https://ntrs.nasa.gov/citations/20220000497 ID - 20220000497 ER -