METHODS
Patients and samplesThis study included a cohort of 87 American pediatric patients recruited
in infancy (Figure 1). Serum samples were collected from children
diagnosed with chronic dermatitis as previously described [9]. All
subjects or their parents/guardians provided written consent for
participation in the study. Sample collection and subsequent use of data
was approved by the IU Institutional Review Board. Flow cytometry
analysis of PBMCs collected throughout the course of the study was
previously described [11].