P    #regions in PPM
# 2023-12-12 10:23:03 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6648  4.6416  0.000  10000.000  # for region 1
  4.1279  4.1045  0.000  10000.000  # for region 2
  0.1066  -0.2132  0.000  10000.000  # for region 3
