Iron Deficiency Anemia and Stroke

Is  there  a  correlation  between  iron  deficiency  anemia  and  stroke?

I  choose  that  question  discussion  because  my  40  years  old  disabled sister  had  a  stroke  at  the  age 29  secondary  to  iron  deficiency  anemia  and  i  want  the  hospital  setting   not  to  overlook  a  young  female  coming  to  the  ER  with  low  hemoglobin.