Wednesday, April 12, 2017

VITAMIN D

https://mobile.nytimes.com/2017/04/10/health/vitamin-d-deficiency-supplements.html?rref=collection%2Fsectioncollection%2Fscience&action=click&contentCollection=science®ion=stream&module=stream_unit&version=latest&contentPlacement=2&pgtype=sectionfron&pagewanted=all&referer=