Isokääntä, Siiri http://orcid.org/0000-0003-1561-3099
Honkalampi, Kirsi http://orcid.org/0000-0002-4328-5291
Kokki, Hannu http://orcid.org/0000-0001-5922-7195
Sintonen, Harri http://orcid.org/0000-0003-1252-0946
Kokki, Merja http://orcid.org/0000-0003-1501-7537
Funding for this research was provided by:
OLVI-Säätiö (201720396)
Suomen Tuberkuloosin Vastustamisyhdistyksen Säätiö (2019)
Hengityssairauksien Tutkimussäätiö (2019)
Article History
Received: 1 November 2020
Accepted: 26 April 2021
First Online: 1 May 2021
Declarations
:
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Research Ethics Committee of the Northern Savo Hospital District, Kuopio, Finland (No. 297/2017; October 10, 2017). Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: Harri Sintonen is the developer of 15D instrument and obtains royalties from its electronic versions. Other authors have no financial or proprietary interests in any material discussed in this article.