In such a case would have to evaluate experiments a fully independent person who would not at all be informed, what materials were used in which of the experiment.
Katika kesi ukame WOULD HAVE majaribio ya kutathmini na kujitegemea kikamilifu mtu nani Je, si wakati wote kuwa khabari, vifaa gani walikuwa Used katika yupi kati ya majaribio.