Two cases of fermented soybean (natto) allergy diagnosed using the skin prick test and enzyme linked immunosorbent assay for poly‐γ‐glutamic acid. Issue 12 (6th September 2020) - Suzuki, Kayoko; Futamura, Kyoko; Sato, Nayu; Nakamura, Masashi; Matsunaga, Kayoko; Yagami, Akiko