title: Letter: Pigeon erythrocytes for rubella haemagglutination inhibition tests.
mesh_terms: D000818:Animals; D002645:Chickens / Q000097:blood; D010856:Columbidae / Q000097:blood*; D004912:Erythrocytes / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D012409:Rubella / Q000276:immunology*