Article Information
vol. 56 no. suppl 64
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History
- Published online October 28, 2020.
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Copyright ©the authors 2020
Author Information
- Nadezda Griva⇑ and
- Pavel Gavrilov
- Saint-Petersburg State Research Institute of Phthisiopulmonology , Saint-Petersburg, Russian Federation
- Nadezda Griva, Saint-Petersburg State Research Institute of Phthisiopulmonology , Saint-Petersburg, Russian Federation. E-mail: grivamd{at}gmail.com