????? ??? ?? ?? ?? ? ?? ??? ?? ???? , ?? ??? ????? ??? ?? ?? ?? ????? ??? ?? ?? ?? ???? ?? ??? ?? ??? ??? ?? ??? ? ??? ??? ?? ????.Trichothiodystrophy, normally identified as TTD, is really a rare inherited condition that impacts many elements of the human body. The hallmark of this ailment is hair that may be sparse and simply broken. [from Medlin