A 21‐Month‐Old Boy with One‐Month History of Vomiting. (25th February 2020) - Aoki, Takahiro; Kishimoto, Hiroshi; Hirato, Junko; Kanemura, Yonehiro; Mori, Makiko; Arakawa, Yuki; Kurihara, Jun; Oguma, Eiji; Koh, Katsuyoshi