Vitamin D status in ANCA-associated vasculitis.
Irena DoubeltDavid CuthbertsonSimon CaretteNader A KhalidiCurry L KoeningCarol LangfordCarol A McAlearLarry W MorelandPaul MonachPhilip SeoUlrich SpecksKenneth J WarringtonPeter A MerkelChristian PagnouxPublished in: Rheumatology advances in practice (2023)
Vasculitis Clinical Research Consortium (VCRC) Longitudinal Study (LS), NCT00315380, https://clinicaltrials.gov/ct2/show/NCT00315380.