Sublingual immunotherapy for 4 years increased the number of Foxp3+ Treg cells, which correlated with clinical effects - Tetsuya Terada; Masaya Matsuda; Miki Inaba; Junpei Hamaguchi; Naoki Takemoto; Yusuke Kikuoka; Yuko Inaka; Harumi Sakae; Kennosuke Hashimoto; Hayato Shimora; Kazuyuki Kitatani; Ryo Kawata; et al. (Inflammation Research, 2021)