Kobayashi, SumitakaItoh, SachikoMiyashita, ChihiroAit Bamai, YuYamaguchi, TakeshiMasuda, HideyukiItoh, MarikoYamazaki, KeikoTamura, NaomiHanley, Sharon J. B.Ikeda-Araki, AtsukoSaijo, YasuakiIto, YoshiyaIwai-Shimada, MiyukiYamazaki, ShinKamijima, MichihiroKishi, Reiko2023-01-232023-01-232022-10-01Kobayashi, S, Itoh, S, Miyashita, C, Ait Bamai, Y, Yamaguchi, T, Masuda, H, Itoh, M, Yamazaki, K, Tamura, N, Hanley, S J B, Ikeda-Araki, A, Saijo, Y, Ito, Y, Iwai-Shimada, M, Yamazaki, S, Kamijima, M & Kishi, R 2022, 'Impact of prenatal exposure to mercury and selenium on neurodevelopmental delay in children in the Japan environment and Children's study using the ASQ-3 questionnaire : A prospective birth cohort.', Environment International, vol. 168, 107448. https://doi.org/10.1016/j.envint.2022.1074480160-4120RIS: urn:6BD53F03A02029CEBD7AC8FB4EC15EFBORCID: /0000-0002-7554-004X/work/127304246https://hdl.handle.net/2164/19875Acknowledgments We thank the participants and their children in the JECS. We wish to express our sincere appreciation to the collaborating hospitals and clinics. We also express our gratitude to all the JECS staff members in Hokkaido, Miyagi, Fukushima, Chiba, Kanagawa, Koshin, Toyama, Aichi, Kyoto, Osaka, Hyogo, Tottori, Kochi, Fukuoka, and MinamiKyushu and Okinawa regional centers and national center for JECS (Programme Office), and the Medical Support Center (Appendix 1). Funding This study was funded by the Ministry of the Environment, Japan. The findings and conclusion of this article are solely the responsibility of the authors and do not represent the official views of the above government.101020276engAges and Stages QuestionnairesJapan Environment and Children’s StudyMercuryNeurodevelopmentPregnancySeleniumR MedicineSupplementary DataRJournal article10.1016/j.envint.2022.107448168