“… 3,6,8,10,13–28,30,32,33,35,36,39–41,44,45,47–52 The DFI has been used in 16 countries (including two multinational studies in Europe), in therapeutic interventions, descriptive studies, drug clinical trials, psychometric studies or clinical practice research studies (Table 7). 3,6,8–11,13–42,44,45,47–58 Even though the DFI is specifically for use in AD, it has been used in eight skin diseases other than AD. These include melasma, lentigo, psoriasis, ectodermal dysplasia and congenital ichthyosis 32,39,50,54 .…”