Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Motoyasu Kusano and Yasuyuki Shimoyama and Sayaka Sugimoto and Osamu Kawamura and Masaki Maeda and Keiko Minashi and Shiko Kuribayashi and Tatsuya Higuchi and Hiroaki Zai and Kyoko Ino and Tsutomu Horikoshi and Tadashi Sugiyama and Munetoshi Toki and Tsuneo Ohwada and Masatomo Mori,Development and evaluation of FSSG: frequency scale for the symptoms of GERD,Journal of Gastroenterology,0944-1174,Springer Science and Business Media LLC,2004-09,39,9,888-891,https://cir.nii.ac.jp/crid/1363670320290554112,https://doi.org/10.1007/s00535-004-1417-7