Psoriasis vulgaris associated with systemic lupus erythematosus successfully treated with apremilast. Issue 6 (10th December 2018) - Ichiyama, Susumu; Hoashi, Toshihiko; Kanda, Naoko; Hashimoto, Hiroshi; Matsushita, Masakazu; Nozawa, Kazuhisa; Ueno, Takashi; Saeki, Hidehisa