Comparative Study of 2 Different Questionnaires in Japanese Patients: The Quality of Life and Utility Evaluation Survey Technology Questionnaire (QUEST) Versus the Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease Questionnaire (FSSG)

Financial support: None. Conflicts of interest: None. Author contributions: Takashi Nonaka, Takaomi Kessoku, Yuji Ogawa and Shogo Yanagisawa performed the research. Yusuke Sekino, Hiroshi Iida, Hiroki Endo, Yasunari Sakamoto, Tomoko Koide and Hirokazu Takahashi analyzed the data. Takashi Sakaguchi, Kazuhiro Atsukawa and Hisao Takahashi drafted the manuscript. Shin Maeda, Atsushi Nakajima and Eiji Gotoh conducted the study. Takashi Nonaka and Masahiko Inamori designed the research study and wrote the paper.