Nichols (IMAGE) St. Jude Children's Research Hospital Caption Co-senior author Kim Nichols, M.D., discovered combining ruxolitinib with the currently used drug dexamethasone was more effective in treating HLH. Credit St. Jude Children's Research Hospital 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.