Abstract
Background: The stability of the new GOLD 2017 COPD staging is unknown, as well as the frequency of individual transitions in COPD stages beyond one year. Methods: All COPD participants in the CHAIN cohort were re-analysed according to GOLD 2017 up to five years of follow-up. Their [...]
Abstract
Traffic accidents count for one of the main causes of life losses globally as well as heavy burden of their consequents on societies, a matter which prompts researchers to discover the reasons of accidents occurrence and factors affect their severity. Therefore, in this study k-means [...]