Abstract
At the request of the author, and with the agreement of the journal editors, the following article has been retracted and is re-published as open access in January 2022.
Chen F-C, Huang C-M, Yu X-W, Chen Y-Y. (2021) Effect of nano zinc oxide on proliferation and toxicity of human gingival cells. Human and Experimental Toxicology 40(12S): S804–S813. DOI: 10.1177/09603271211058063