title: Characterization of RT1.B alleles from serologically identical and different RT1.B/D haplotypes.
mesh_terms: D000483:Alleles; D000818:Animals; D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D005802:Genes, MHC Class II; D006239:Haplotypes; D006649:Histocompatibility Antigens / Q000235:genetics*; D018807:Polymorphism, Single-Stranded Conformational; D051381:Rats; D020133:Reverse Transcriptase Polymerase Chain Reaction