P    #regions in PPM
# 2017-08-07 13:47:50 +0200  sstadmiller@avance500.med.unc.edu
# low field   high field   mi   maxi
  -121.93275164992455  -123.0955980553053  5.491  12.508  # for region 1
  -123.0955980553053  -125.39360404689107  11.898  19.677  # for region 2
