Sehgal, Rachna, Sheffali Gulati, Yogendra K. Gupta, Savita Sapra, Ravinder M. Pandey, and Madhulika Kabra. 2020. “Blood Heavy Metal Levels in Children With Attention Deficit Hyperactivity Disorder: An Unsolved Enigma”. International Journal of Contemporary Pediatrics 7 (3):640-46. https://doi.org/10.18203/2349-3291.ijcp20200693.