@article{12901, keywords = {Antigens, Bacterial, Bacterial Proteins, Carbohydrates, Cross Reactions, Cytoplasm, Diagnosis, Differential, Humans, Hypersensitivity, Delayed, leprosy, Mexico, Nocardia, Nocardia Infections, Nocardia asteroides, Nucleic Acids, Rural Population, Skin Tests, Tuberculosis}, author = {Ortiz-Ortiz L and Bojalil L F}, title = {Delayed skin reactions to cytoplasmic extracts of Nocardia organisms as a means of diagnosis and epidemiological study of Nocardia infection.}, year = {1972}, journal = {Clinical and experimental immunology}, volume = {12}, pages = {225-9}, month = {1972 Oct}, issn = {0009-9104}, language = {eng}, }