P    #regions in PPM
# 2023-12-12 16:05:09 +0000  amg@AVANCE500
# low field   high field   mi   maxi
  4.674  4.6571  0.000  10000.000  # for region 1
  4.136  4.120609999999999  0.000  10000.000  # for region 2
  4.1206  4.1024  0.000  10000.000  # for region 3
  0.1134  -0.0171  0.000  10000.000  # for region 4
