Prevention of exacerbations in patients with COPD and vitamin D deficiency through vitamin D supplementation (PRECOVID): a study protocol
Crossref DOI link: https://doi.org/10.1186/s12890-015-0101-4
Published Online: 2015-09-23
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Rafiq, Rachida
Aleva, Floor E.
Schrumpf, Jasmijn A.
Heijdra, Yvonne F.
Taube, Christian
Daniels, Johannes MA
Lips, Paul
Bet, Pierre M.
Hiemstra, Pieter S.
van der Ven, André JAM
den Heijer, Martin
de Jongh, Renate T.
License valid from 2015-09-23