P    #regions in PPM
# 2011-07-13 10:55:32 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  8.417523015388673  8.02356718003507  0.528  4.242  # for region 1
  6.15227696210545  5.994694627964008  1.320  2.212  # for region 2
  4.950711664276958  4.766865607778609  0.693  1.320  # for region 3
  4.589585481869487  3.762278227626919  0.380  2.377  # for region 4