P    #regions in PPM
# 2011-05-18 09:44:31 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  3.117369294219087  2.8037430500734093  0.597  1.553  # for region 1
  1.8666429470839139  1.6625969569168464  0.175  1.045  # for region 2
  0.7935121839830404  0.578130305473358  0.363  1.229  # for region 3
  0.32029847150562374  -0.32029847150562374  12.991  17.195  # for region 4