A Comparison Study of Vitamin D Deficiency among Older Adults in China and the United States
Crossref DOI link: https://doi.org/10.1038/s41598-019-56297-y
Published Online: 2019-12-23
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Wei, Jia
Zhu, Anna
Ji, John S. http://orcid.org/0000-0002-5002-118X
Text and Data Mining valid from 2019-12-23
Version of Record valid from 2019-12-23
Article History
Received: 26 July 2019
Accepted: 9 December 2019
First Online: 23 December 2019
Competing interests
: The authors declare no competing interests.