Differentiation of C. dubliniensis and C. albicans by the PCR/RFLP method. Lanes 1 and 4, PCR products of C. dubliniensis CBS 7987; lanes 2 and 3, PCR products of C. albicans ATCC 10231; lane 5, PCR products of C. dubliniensis CBS 7987 digested with the BamHI restriction enzyme; lane 6, PCR products of C. albicans ATCC 10231 digested with the BamHI restriction enzyme; lane M, molecular size marker.