Involvement of opioid systems in itch-related behavior of imiquimod-induced psoriasis-like dermatitis model. Issue 2 (May 2017) - Takahashi, Nobuaki; Tominaga, Mitsutoshi; Kamata, Yayoi; Umehara, Yoshie; Matsuda, Hironori; Suga, Yasushi; Ogawa, Hideoki; Takamori, Kenji