Associations of ambient air pollution exposure to fine particulate matter and its chemical constituents before and during pregnancy with the risk of full-term small for gestational age: a retrospective cohort study - Tingrong Wang; Hanping Ma; Rui Li; Donghua Li; Tianshan Shi; Zhenjuan Li; Zixuan Zou; Xiaowei Ren (International Archives of Occupational and Environmental Health, 2025)