N. Kawakami, K. Imamura, T. Baba, Y. Asai, A. Tsutsumi, A. Shimazu, A. Inoue, H. Hiro, Y. Odagiri, T. Yoshikawa, E. Yoshikawa. (2018). PREDICTING LOST PRODUCTIVE TIME AND MEDICAL COST DUE TO POOR PSYCHOSOCIAL WORKING CONDITIONS: A ONE-YEAR PROSPECTIVE STUDY