a 7.3-year prospective study of 1,380 patients with psoriasis who were treated with oral methoxsalen ( 8-methoxypsoralen ) and ultraviolet a photochemotherapy ( puva ) revealed that patients who continued on puva therapy used inpatient hospital treatment less than one fourth as often as those who had discontinued treatment .
C0033860
psoriasis
C0025684
8-methoxypsoralen