Dear @elena, thank you so much for asking this interesting question!
I would like to ask you and all other members to use the tag @question in the future when asking the authors, in order to make sure that the question reaches us in the moderation team. Writing @question anywhere in the text will send that post to our list of questions to be submitted to the authors.
More info on this can be found in our Support and Announcements forum: How to Submit a Question to the Authors
Thank you so much!