Combined Use of Virtual Reality and a Chatbot Reduces Emotional Stress More Than Using Them Separately oleh Atsuko Matsumoto, Takeshi Kamita, Yukari Tawaratsumida, Ayako Nakamura, Harumi Fukuchimoto, Yuko Mitamura, Hiroko Suzuki, Tsunetsugu Munakata, Tomoo Inoue