I need help finding information for a free mammogram in Philadelphia.  I have a history of cancer myself and my mother, grand mother and great grand mother have all passed away due to breast cancer.  I no longer have insurance and work a low income job.  I am in desperate need of having a current mammogram.  I am concerned about a very small lump that I have detected with self-examination.  I have searched the internet but cannot find any real answers for help or where to go.  Please help with REAL REFERRALS

~Bridget