??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.?? ????? ???? ??? ???? ?? ??? ? ?? ???? ??? ? ????. ?? ????? ??? ????? ??? ???? ?? ???? ??????!??? ?? ??: ???? ??? ??? ? ?? ?? ??? ?? ???? ?????.By adolescence, all people with MLIV have extreme visual impairment. A neurodegenerative part of MLIV has grown to be additional greatly apprec