id	keyword
dpc-4021	psoriasis
dpc-4021	treatment
dpc-4021	leflunomide
dpc-4021	patients
dpc-4021	methotrexate
dpc-4021	pmid
dpc-4021	doi
dpc-4021	study
dpc-4021	arthritis
dpc-4021	dermatol
dpc-4021	disease