Fractional exhaled nitric oxide distribution and its relevant factors in the general adult population and its healthy subpopulation oleh Mitsuhiro Yamada, MD, PhD, Masato Takase, MPH, Kumi Nakaya, PhD, Tomohiro Nakamura, PhD, Mana Kogure, PhD, Naoki Nakaya, PhD, Naoya Fujino, MD, PhD, Tsutomu Tamada, MD, PhD, Chikashi Iwasaki, MD, Manami Suzuki, MD, Shuichiro Matsumoto, MD, Nobuo Fuse, MD, PhD, Akira Uruno, MD, PhD, Kazuki Kumada, PhD, Soichi Ogishima, PhD, Shinichi Kuriyama, MD, PhD, Masakazu Ichinose, MD, PhD, Hisatoshi Sugiura, MD, PhD, Atsushi Hozawa, MD, PhD