P    #regions in PPM
# 2011-08-24 11:38:36 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  4.312293469772791  3.9675857583600975  0.159  1.874  # for region 1
  3.098922325600111  2.8817564674101144  0.612  4.629  # for region 2
  2.099269962503301  1.9441614923675892  10.742  19.272  # for region 3
  1.944151492367589  1.2892068406834722  0.194  2.878  # for region 4
