Williams during blood draw in the JPM during Expedition 22

ISS022-E-091395 (12 March 2010) --- NASA astronaut Jeffrey Williams, Expedition 22 commander, works with test samples in the Human Research Facility 2 (HRF-2) Refrigerated Centrifuge as a part of the Nutritional Status Assessment (Nutrition) experiment in the Columbus laboratory of the International Space Station. The results of the Nutrition experiment will be used to better understand the time course effects of space flight on human physiology.