  In a premier paper on the information-theoretic analysis of a two-user
cognitive interference channel(CIC), Devroye et al. presented an achievable
rate region for the two-user discrete memoryless CIC. The coding scheme
proposed by Devroye et al. is correct but unfortunately some rate-terms in the
derived achievable rate region are incorrect (in fact incomplete) because of
occurring some mistakes in decoding and analysis of error probability. We
correct and complete the wrong rate-terms and thereby show that the corrected
achievable rate region includes the rate region presented in.
