Erhola Marina, Vasankari Tuula, Jormanainen Vesa, Toppila-Salmi Sanna, Herrala Jaakko, Haahtela Tari
National Institute for Health and Welfare, Helsinki, Finland.
Filha, Finnish Lung Health Association, Helsinki and University of Turku, Turku, Finland.
Lancet Respir Med. 2019 May;7(5):e16. doi: 10.1016/S2213-2600(19)30122-5.