PDS also includes advancement of euthyroid goiter in late childhood to early adulthood While NSEVA won't. [from GeneReviews]???? ??? ? ?? ??: ??? ??? ???? ???? ??? ? ????.A chromosomal abnormality consisting in the absence of one of many copies of chromosome 7 in somatic cells. [from NCI]?? ??? ?? ?? ??? ??? ??? ??? ??? ???. ?? ???? ??? ??? ?? ??