Vitamin D supplementation in chronic obstructive pulmonary disease patients with low serum vitamin D: a randomized controlled trial.
Rafiq R, Aleva FE, Schrumpf JA, Daniels JM, Bet PM, Boersma WG, Bresser P, Spanbroek M, Lips P, van den Broek TJ, Keijser BJF, van der Ven AJAM, Hiemstra PS, den Heijer M, de Jongh RT; PRECOVID-study group.
Rafiq R, et al. Among authors: van der ven ajam, van den broek tj.
Am J Clin Nutr. 2022 Aug 4;116(2):491-499. doi: 10.1093/ajcn/nqac083.
Am J Clin Nutr. 2022.
PMID: 35383823
Free PMC article.
Clinical Trial.