P    #regions in PPM
# 2011-07-28 12:49:10 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  221.243896484375  184.94973642167673  0.000  10000.000  # for region 1
  184.94973642167673  177.991675949502  1.448  5.790  # for region 2
  177.991675949502  38.60601294238883  0.000  10000.000  # for region 3
  38.60601294238883  13.018306689875304  11.218  18.673  # for region 4
  13.018306689875304  -15.5546131331844  0.000  10000.000  # for region 5