P    #regions in PPM
# 2012-09-14 13:36:23 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  4.126586869259064  3.996795977904015  1.527  8.396  # for region 1
  3.6226928204688735  3.4566368271175603  2.205  21.117  # for region 2
  3.239046215139978  3.1130727029424303  27.139  130.606  # for region 3