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   The following distributions are available:
   CTEQ4m, MRS(A'), MRS(G) parton distribution functions for the 
proton/antiproton,
   'Laser photons' for the spectrum of hard photons scattered backward
in the collision of laser beam with the high energy electron beam,
   'Equiv.photons' for the spectrum of soft photons emitted by the initial 
monochromatic electron/positron at a small angle,  
   'ISR' for the effective spectrum of electron/positron after energy 
losses due to the multiple soft photon radiation from the initial state 
(resumed) and radiation in the electromagnetic field of the other 
positron/electron bunch.
    See the Manual for details.