%0 Journal Article
%A Schöttker, Ben
%A Kuznia, Sabine
%A Brenner, Hermann
%T Efficacy of vitamin D3 supplementation on cancer mortality in the general population and the prognosis of patients with cancer: protocol of a systematic review and individual patient data meta-analysis of randomised controlled trials.
%J BMJ open
%V 11
%N 1
%@ 2044-6055
%C London
%I BMJ Publishing Group
%M DKFZ-2021-00135
%P e041607
%D 2021
%Z #EA:C070#LA:C070# / Protocol
%X Vitamin D insufficiency is much more common among patients with cancer than the general population. Previous meta-analyses of controlled trials showed an approximately 15
%K epidemiology (Other)
%K nutrition & dietetics (Other)
%K nutritional support (Other)
%K oncology (Other)
%K protocols & guidelines (Other)
%K public health (Other)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:33441357
%R 10.1136/bmjopen-2020-041607
%U https://inrepo02.dkfz.de/record/166805