Amplification data were handled in a Bio-Rad CFX Maestro v 3.0 (Bio-Rad, Hercules, CA, USA), with Ct determination mode set to a single threshold and the baseline decided by baseline subtracted curve fit. Unknown cell concentrations were derived directly from the standard calibration curve by a Bio-Rad CFX Maestro v 3.0 (Bio-Rad, Hercules, CA, USA). Raw data were extracted to Microsoft Excel Professional Plus 2010 (Microsoft, Redmond, WA, USA) and OriginPro 2019b (Originlab Co., Northampton, MA, USA), where they were inspected manually.
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