: Researchers from the USA have developed diagnostic thresholds for a new metric—Parameter D—which can be used for early detection of individuals with airflow obstruction. Read more here: [ Ссылка ]
![](https://s2.save4k.ru/pic/RJkiASHjDv4/maxresdefault.jpg)
: Researchers from the USA have developed diagnostic thresholds for a new metric—Parameter D—which can be used for early detection of individuals with airflow obstruction. Read more here: [ Ссылка ]