P    #regions in PPM
# 2012-02-18 13:30:36 -0600  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  12.7608117884  3.828167822007338  1.000  1000000.000  # for region 1
  3.828167822007338  3.3877435442798487  1.239  18.931  # for region 2
  3.3877435442798487  -3.26128166599  1.000  1000000.000  # for region 3