What The Study Did: Researchers assessed associations between prenatal, early postnatal or current exposure to secondhand smoke and symptoms of attention-deficit/hyperactivity disorder (ADHD) among school-age children in China.
Authors: Li-Wen Hu, M.D., Ph.D., and Guang-Hui Dong, M.D., Ph.D., of Sun Yat-sen University in Guangzhou, China, are the corresponding authors.