Published 9/1/2012
Gottlieb AB, Langley RG, Strober BE, Papp KA, Klekotka P, Creamer K, Thompson EH, Hooper M, Kricorian G. A randomized, double-blind, placebo-controlled study to evaluate the addition of methotrexate to etanercept in patients with moderate to severe plaque psoriasis. Br J Dermatol. 2012 Sep; 167(3):649-57. PMID: 22533447.