G.M. Cauthen1, A. Pio2 and H.G. ten Dam3




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1 Division of Tuberculosis Control, U.S. Centers for disease Control, Atlanta, Georgia, USA.

2 Formely Chief Tuberculosis and Respiratory Infections Unit, Division of Communicable Diseases World Health Organization, Geneva, Switzerland.

3 Scientist, Tuberculosis Unit, Division of Communicable Diseases, World Health Organization, Geneva, Swirtzerland.

* The figures have been redrawn for reproduction by Hans L. Rieder, Switzerland.

World Health Organization Genebra - Genebra - Switzerland