P    #regions in PPM
# 2018-08-31 14:23:52 -0500  bmrbmb@tonga.nmrfam.wisc.edu
# low field   high field   mi   maxi
  8.199982156547687  1.06871805357849  0.124  18.089  # for region 1
  1.06871805357849  0.7578182561738384  11.729  12.514  # for region 2
