??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????. ????? ??? ????? ???? ????.????? ???? ??? ??? ??? ???? ?????. A chromosomal abnormality consisting with the absence of among the list of copies of chromosome 7 in somatic cells. [from NCI] ?? ??? ?? ?? ??? ??? ??? ??? ??