International observational atopic dermatitis cohort to follow natural history and treatment course: TARGET-DERM AD study design and rationale oleh Amy S Paller, Emma Guttman-Yassky, Katrina Abuabara, Jonathan I Silverberg, Eric L Simpson, Lawrence F. Eichenfield, Robert Bissonnette, James Krueger, John E. Harris, Laura Dalfonso, Stephanie E Watkins, Julie M Crawford, D Thaçi