P    #regions in PPM
# 2013-01-11 09:02:16 -0600  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  221.22191  0.000  1000000.000  # for region 1
  221.2219  -15.5766  100.000  1000000.000  # for region 2