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TO BURP OR NOT TO BURP ?Iguchi, Yasuyuki; Kimura, Kazumi; Sone, Keiichi; Miura, Hiroshi; Endo, Hiroshi; Yamagata, Sen; Koide, Hisashi; Suzuki, Kenji; Kimura, Tomoichiro; Sakurai, Masaru; Mishima, Nobuya; Yoshii, Kenji; Fujisawa, Hiroyuki; Ebisutani, Sunao · The Lancet · 1950