Sehgal, R.; Gulati, S.; Gupta, Y. K.; Sapra, S.; Mehta, M.; Pandey, R. M.; Kumar, G.; Srivastava, A.; Kabra, M. Blood Heavy Metal Levels in Children With Autism Spectrum Disorder: A Cross- Sectional Study From Northern India. J. Nepal Paedtr. Soc. 2019, 39, 6-14.