College Publications: PDF OnlyCommittee Opinion No. 495: Vitamin D: Screening and Supplementation During PregnancyObstetrics & Gynecology: July 2011 - Volume 118 - Issue 1 - p 197-198 doi: 10.1097/AOG.0b013e318227f06b Free Metrics © 2011 by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.