Jayant Pinot, MD, with Research Tool (IMAGE) University of Chicago Medical Center Caption For both studies, the researchers used a well-validated tool, known as 'Sniffin'Sticks.' Credit Rob Kozloff, for the University of Chicago Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.