Psoralens.
D003374:Coumarins / Q000627:therapeutic use*; D005363:Ficusin / Q000627:therapeutic use*; D011564:Furocoumarins; D006801:Humans; D008730:Methoxsalen / Q000627:therapeutic use*; D011565:Psoriasis / Q000188:drug therapy*
D003374:Coumarins; D011564:Furocoumarins; D005363:Ficusin; D008730:Methoxsalen