P    #regions in PPM
# 2012-04-20 12:58:57 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  222.33511000000001  0.000  1000000.000  # for region 1
  222.3351  -16.612  5.000  1000000.000  # for region 2