P    #regions in PPM
# 2012-04-20 12:24:57 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  4.150649852041474  3.9319711130336628  0.137  1.084  # for region 1
  3.5689219443896256  3.4691365003763526  0.199  1.242  # for region 2
  3.244088477708119  3.142179939141372  5.483  17.560  # for region 3