Helpful Mouse Fetuses Naturally Send Stem Cells to Mom to Fix Her Damaged Hearthttp://blogs.discovermagazine.com/80beats/2011/11/21/helpful-mouse-fetuses-naturally-send-stem-cells-to-mom-to-fix-her-damaged-heart/ by tobtoh • 15 years ago 10 0 15 years agoBLblogs.discovermagazine.com