Inhalation challenge test using pigeon eggs for chronic hypersensitivity pneumonitis. - Okuda, Ryo; Takemura, Tamiko; Mikami, Yu; Hagiwara, Eri; Iwasawa, Tae; Baba, Tomohisa; Kitamura, Hideya; Komatsu, Shigeru; Okudela, Koji; Ohashi, Kenichi; Ogura, Takashi (Clinical & Experimental Allergy, 2020)