Funding for this research was provided by:
Natural Science Fundation of Shandong Province (ZR2015HQ013)
Binzhou Medical University Fund
Yantai Regional Innovation and Development fund (ZCQ18115)
Received: 14 November 2019
Accepted: 2 July 2020
First Online: 27 July 2020
: WZ, FT, YZ, JL & JZ are employees of Yantai Quanticision Diagnostics, Inc., a division of Quanticision Diagnostics, Inc., who own or has filed patent applications for QDB plate, QDB method, & QDB application in IHC analysis. GY, SW, XS declared no competing interests.