It is known that there are very few individuals having 44 chromosomes, not the usual 46 chromosomes.

One example is a male in China: the first article, the second article.

And the other is a female in Turkey, regretfully the article is in Turkish.

It is claimed in the links that they might reproduce and make healthy children if they mate. So I wonder if this already happened and such a couple is living, or if it would be theoretically possible?