A 30-year-old man has had psoriasis for 5 years. He has been on PUVA therapy for a month and his condition has improved significantly. However, after looking up other treatment options on the Internet, he has become very curious about narrowband UVB therapy. He is now inquiring regarding the efficacy of the treatment as compared to his present therapy.

Human ; Male ; Adult ; Internet ; Puva Therapy ; Phototherapy ; Psoriasis ; Patients