Sigma Fellows Kirk Hou (2009), Jay Rammohan (2010), John Robinson (2011) and Mariah Lawler (2012) were recently honored at a luncheon that included Rakesh Sachdev, Sigma- Aldrich President and CEO, a number of other Sigma officials, Dean Larry Shapiro and a number of WUSM faculty. Sigma-Aldrich gives a generous donation annually to support graduate education in memory of Dr. Gery Cori.