APA (7th ed.) Citation

Zhang, S., Mao, B., Xu, F., Zhou, C., & Liu, W. L-shaped relationship of Vitamin D and blood lead levels among preschool children age 3–6: A cross-sectional study. Elsevier.

Chicago Style (17th ed.) Citation

Zhang, Shengying, Bibo Mao, Fei Xu, Chenbo Zhou, and Wenyuan Liu. L-shaped Relationship of Vitamin D and Blood Lead Levels Among Preschool Children Age 3–6: A Cross-sectional Study. Elsevier.

MLA (9th ed.) Citation

Zhang, Shengying, et al. L-shaped Relationship of Vitamin D and Blood Lead Levels Among Preschool Children Age 3–6: A Cross-sectional Study. Elsevier.

Warning: These citations may not always be 100% accurate.