Fig. 2From: Observational study of Interleukin-21 (IL-21) does not distinguish Kawasaki disease from other causes of fever in childrenIL-21 in KD and controls in relation to day of fever. Length of fever was calculated by review of the medical record for each subject. IL-21 levels did not have significant correspondence with duration of fever in febrile pediatric patients presenting to the Emergency DepartmentBack to article page