I hadn't heard of that "6 7" let's say it's like a kind of language among teenagers and well, because of your work it's good to know it, so surely more could join in the next months or days. Your profession is excellent, my friend. In addition, I imagine the patience that must be had with children and adolescents with some special condition and as you say in some paragraph of your publication, it's better that they spend that time on their cell phones.