So what ?
It's nothing to do with you how long it takes, you didn't contribute to it, you're not helping by doing anything with the samples, the only thing you're doing is moaning about the time that's being taken doing the study for your own selfish reasons, the need for " knowing " one way or the other the outcome of the study.
I would say " Who do you think you are ? " but you answered that yesterday and made me spit my Coffee all over the screen when you did..