P    #regions in PPM
# 2023-12-12 11:39:43 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.6601  4.6594  0.000  10000.000  # for region 1
  4.6594  4.6455  0.000  10000.000  # for region 2
  4.1189  4.1024  0.000  10000.000  # for region 3
  0.3464  0.15281  0.000  10000.000  # for region 4
  0.1528  -0.2607  0.000  10000.000  # for region 5
