Jonathan I. Silverberg, MD, PhD, MPH 
Northwestern Medicine Multidisciplinary Eczema Center, Contact Dermatitis Clinic, Northwestern Memorial Hospital, Departments of Dermatology, Preventive Medicine, and Medical Social Sciences, Northwestern University, Feinberg School of Medicine, 676 North Saint Clair Street, Suite 1600, Chicago, IL 60611, USA
Nanette B. Silverberg, MD 
Pediatric Dermatology, Mount Sinai Health Systems, Departments of Dermatology and Pediatrics, Icahn School of Medicine at Mount Sinai, 425 West 59th Street, Suite 8B, New York, NY 10019, USA