But we do n't put any time limits on it 'cause we know that in some cases , it 's literally life-saving . '' Dr. Roseanna Means ' nonprofit offers direct , free medical care to homeless women and children . She set up clinics in Boston shelters after discovering that many women were n't using existing services . Comment: Do you know a hero ? Nominations are open for 2011 CNN Heroes .
Dr. Roseanna Means ' nonprofit offers direct , free medical care to homeless women and children . She set up clinics in Boston shelters after discovering that many women were n't using existing services . Comment: Do you know a hero ? Nominations are open for 2011 CNN Heroes .