P    #regions in PPM
# 2011-10-25 08:43:24 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  10.364749935988312  9.455111808108004  1.882  7.561  # for region 1
  7.603806040802305  7.357178801905179  0.480  3.339  # for region 2
  6.9952453214457595  6.835097763720353  0.349  4.124  # for region 3
  3.279821982216326  1.639910991108163  7.468  20.368  # for region 4