Comorbidity, variable obstruction and COPD. A problem with many unknowns?

E. A. Andreeva; M. A. Pokhaznikova; O. Yu. Kuznetsova

New St. Petersburg Medical Records
Novye Sankt-Peterburgskie vračebnye vedomosti

ISSN 1609-2201 (Print)

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Andreeva E.A., Pokhaznikova M.A., Kuznetsova O.Yu. Comorbidity, variable obstruction and COPD. A problem with many unknowns? New St. Petersburg Medical Records. 2024;(4):47-55. (In Russ.) https://doi.org/10.24884/1609-2201-2024-103-4-47-55

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ISSN 1609-2201 (Print)

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