Human Research Program (Biochemical Profile, Marrow, Vascular Echo, and Repository): 53S crewmembers collected blood and urine samples for their Return minus 14-day session of the Biochem Profile, Marrow and Repository investigations. One of the 53S crewmembers also started a 24-hour ambulatory blood pressure monitoring session. Blood samples are being processed in the alternate non-refrigerated centrifuge …