{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T00:11:54Z","timestamp":1779235914171,"version":"3.51.4"},"reference-count":3,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T00:00:00Z","timestamp":1759276800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T00:00:00Z","timestamp":1759276800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","clinicalnutritionespen.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Clinical Nutrition ESPEN"],"published-print":{"date-parts":[[2025,10]]},"DOI":"10.1016\/j.clnesp.2025.07.017","type":"journal-article","created":{"date-parts":[[2025,7,15]],"date-time":"2025-07-15T21:24:39Z","timestamp":1752614679000},"page":"765-766","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["Vitamin D deficiency in COPD: A call for multilevel interventions and broader assessment"],"prefix":"10.1016","volume":"69","author":[{"given":"Nana","family":"Wang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenmei","family":"Bai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yujiao","family":"He","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.clnesp.2025.07.017_bib1","doi-asserted-by":"crossref","first-page":"665","DOI":"10.1016\/j.clnesp.2025.04.013","article-title":"Vitamin D deficiency and its potential associations on the health status of older patients with chronic obstructive pulmonary disease in rural Crete, Greece: a cross-sectional study","volume":"67","author":"Bouloukaki","year":"2025","journal-title":"Clin Nutr ESPEN"},{"issue":"4","key":"10.1016\/j.clnesp.2025.07.017_bib2","doi-asserted-by":"crossref","first-page":"560","DOI":"10.3390\/biom15040560","article-title":"The quantification of vitamin D in humans: a promising, non-invasive and cost-effective method to measure 25-hydroxyvitamin D","volume":"15","author":"Squillacioti","year":"2025","journal-title":"Biomolecules"},{"issue":"7","key":"10.1016\/j.clnesp.2025.07.017_bib3","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1038\/s41430-025-01587-0","article-title":"High prevalence of low vitamin D status in the Czech Republic: a retrospective study of 119,925 participants","volume":"79","author":"Holmannova","year":"2025","journal-title":"Eur J Clin Nutr"}],"container-title":["Clinical Nutrition ESPEN"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2405457725017681?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2405457725017681?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T23:55:39Z","timestamp":1779234939000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S2405457725017681"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,10]]},"references-count":3,"alternative-id":["S2405457725017681"],"URL":"https:\/\/doi.org\/10.1016\/j.clnesp.2025.07.017","relation":{},"ISSN":["2405-4577"],"issn-type":[{"value":"2405-4577","type":"print"}],"subject":[],"published":{"date-parts":[[2025,10]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Vitamin D deficiency in COPD: A call for multilevel interventions and broader assessment","name":"articletitle","label":"Article Title"},{"value":"Clinical Nutrition ESPEN","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.clnesp.2025.07.017","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"https:\/\/doi.org\/10.1016\/j.clnesp.2025.07.018","name":"associatedlink","label":"CrossRef DOI link to the associated document"},{"value":"simple-article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2025 Published by Elsevier Ltd on behalf of European Society for Clinical Nutrition and Metabolism.","name":"copyright","label":"Copyright"}]}}