Maternal vitamin D status, prolonged labor, cesarean delivery and instrumental delivery in an era with a low cesarean rate
Crossref DOI link: https://doi.org/10.1038/jp.2014.139
Published Online: 2014-08-07
Published Print: 2015-01
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Gernand, A D
Klebanoff, M A
Simhan, H N
Bodnar, L M
Text and Data Mining valid from 2014-08-07
Version of Record valid from 2014-08-07
Article History
Received: 11 December 2013
Revised: 15 June 2014
Accepted: 23 June 2014
First Online: 7 August 2014
Competing interests
: The authors declare no conflict of interest.