???? ??? ?? ?? ? ????? ? ?? ??? ?? ???? ??? ??? ? ??? ? ??? ? ?? ? ??? ??? ??????.Trichothiodystrophy, usually termed TTD, can be a unusual inherited ailment that has an effect on numerous parts of your body. The hallmark of this ailment is hair which is sparse and simply damaged. [from MedlinePlus Genetics]People today with PNH are at enhanced haz