An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
[A study of prevalence of resistance to major drugs among newly admitted pulmonary tuberculosis patients in 1972. Part 2. Studies on the factors related to the prevalence of drug resistance (author's transl)]
[A study of prevalence of resistance to major drugs among newly admitted pulmonary tuberculosis patients in 1972. Part 2. Studies on the factors related to the prevalence of drug resistance (author's transl)]