P    #regions in PPM
# 2012-06-06 08:50:47 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  39.94504331493455  0.000  1000000.000  # for region 1
  39.94504331493455  36.006638356397005  5.392  19.470  # for region 2
  35.99518950477335  0.1  0.000  1000000.000  # for region 3