Evaluation of the relationship of IL17A and IL17F gene polymorphisms with the response to treatment in psoriatic patients using biological drugs: case-control study in patients in eastern Turkey - Ozkol, Hatice; Gorgisen, Gokhan; Ates, Can; Özkol, Halil; Tülüce, Yasin; Savas, Hulya; Gulacar, İsmail (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2021)