Josef Jadassohn ( 1863 - 1936 ) had observed a dermatophytosis causing a secondary allergic skin dermatitis .
Josef Jadassohn ( 1863 - 1936 ) is a German dermatologist who coined the term id .
Josef Jadassohn ( 1863 - 1936 ) , a German dermatologist who coined the term id , had observed a dermatophytosis causing a secondary allergic skin dermatitis .