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 . Her team of nine volunteer doctors together donate $ 500,000 in services 2011 . Do you know a hero ? Nominations are open for annually 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 . Her team of 17 volunteer doctors together donate $ 500,000 in services annually . Do you know a hero ? Nominations are open for 2011 CNN Heroes .