???? ??? ?? ?? ? ????? ? ?? ??? ?? ???? ??? ??? ? ??? ? ??? ? ?? ? ??? ??? ??????.????? ?? ???? ? ??? ???? ??? ?? ??? ?? ??? ?????? ??? ?? ?????? ??? ?? ??? ?? ?? ?? ??? ?????? ???? ?? ??? ?? ??? ?? ? ???? ? ?? ??? ????.Individuals with PNH are at increased risk of developing cancer in blood-forming cells (leukemia). In some cases, Individuals who