P    #regions in PPM
# 2012-07-25 11:05:13 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  222.13911000000002  0.000  1000000.000  # for region 1
  222.1391  -16.808  3.000  1000000.000  # for region 2