P    #regions in PPM
# 2011-12-19 11:09:46 -0600  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  2.069851181107349  2.0484070741943783  51.217  133.848  # for region 1
  0.0030606485530274338  -0.004147984223181917  19.998  45.782  # for region 2