Parashar, Sandeep Estimation of Release of Nickel and Chromium by Indian Made Orthodontic Appliance in Saliva. [electronic resource] - Journal of clinical and diagnostic research : JCDR Sep 2015 - ZC75-9 p. digital Publication Type: Journal Article ISSN: 2249-782X Standard No.: 10.7860/JCDR/2015/14404.6520 doi