1 Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
2 Ann and Robert H. Lurie Children's Hospital, Chicago, Illinois, USA.
3 Saint Louis University, St. Louis, Missouri, USA.
4 Cardinal Glennon Children's Hospital, St. Louis, Missouri, USA.
5 Aragon Psychodermatology Research Group (GAI+PD) Partnered with Aragon Health Sciences Institute (IACS), University Hospital Miguel Servet, Zaragoza, Spain.
6 University of Zaragoza, Zaragoza, Spain.
7 RTI Health Solutions, Ann Arbor, Michigan, USA.
8 RTI Health Solutions, Durham, North Carolina, USA.
9 RTI Health Solutions, Manchester, UK.
10 Regeneron Pharmaceuticals Inc., Tarrytown, New York, USA.