Sorry if this is a repeat. I don't remember anyone posting this before.
Great article. Reading it however, I think even the researchers acknowledged towards the end that they could not rule out that the lower rate of aneupolidy embryos could be due to the fact that the lower stim group also uses an antagonist protocol which does not disrupt follicle selection. The higher stim group used an agonist in a long down regulation protocol that disrupted the natural selection of follicles which could be the cause of the abnormalities. In the end, both groups made the same number of normal embryos but the rate at which normal embryos were made was higher with the low stim protocol.
I would be interested to see other studies where the participants were similarly situated but for their stim amount..that was not the case here.