Comment on ``Electron Mass Operator in a Strong Magnetic Field and   Dynamical Chiral Symmetry Breaking"
  This is a comment on the paper ``Electron Mass Operator in a Strong Magnetic Field and Dynamical Chiral Symmetry Breaking" by A. V. Kuznetsov and N. V. Mikheev [Phys. Rev. Lett. 89 (2002) 011601]. We show that the main conclusions of the paper are incorrect. 
V. P. Gusynin, V. A. Miransky and I. A. Shovkovy