Shelby, Andrew
Pendleton, Chandler
Thayer, Emma
Johnson, Georgia K.
Xie, Xian Jin
Brogden, Kim A. http://orcid.org/0000-0003-3296-3867
Article History
Received: 18 August 2020
Accepted: 5 November 2020
First Online: 13 November 2020
Ethics approval and consent to participate
: Written informed consent was obtained and GCF was collected from periodontally diseased and periodontally healthy subjects with approval from the Human Institutional Review Board, University of Iowa (IRB ID #: 201,807,763) [CitationRef removed]. Informed consent was obtained from all subjects to collect GCF for the previous study, and subjects consented for their GCF to be used in further studies. The study was conducted in accordance with the Helsinki Declaration of 1975, as revised in 2013. The present study to assess the concentrations of PD-L1 in these samples did not meet the regulatory definition of human subject research and did not require re-review by the Human Institutional Review Board, University of Iowa. Samples had been de-identified in the prior study and no new identifiable patient data was generated.
: All authors agree to submit for consideration for publication in the journal.
: Authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.