TY - GEN AU - Bickers,D R TI - Photochemotherapy of psoriasis: risk:benefit ratios SN - 0190-9622 PY - 1981///0528 KW - Coal Tar KW - adverse effects KW - Humans KW - Methoxsalen KW - PUVA Therapy KW - Photochemotherapy KW - Psoriasis KW - drug therapy KW - Risk N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0190-9622(81)80293-9 ER -