P    #regions in PPM
# 2012-08-28 09:58:26 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  8.04446389943116  7.6840488501734905  2.321  11.163  # for region 1
  6.444221080727111  4.807936757097297  0.588  13.513  # for region 2
  4.079898357596806  3.5104425797696903  0.382  7.726  # for region 3
  3.44556787090331  3.200485637408095  2.515  16.979  # for region 4