Impact of temperature, humidity, dehydration, and psychological stress on salivary flow and xerostomia in young men: An observational study. - Ito, Kayoko; Nohno, Kaname; Funayama, Saori; Katsura, Kouji; Kaneko, Noboru; Tanaka, Keiko; Inoue, Makoto (PLoS ONE, 2026)