Links
[1] http://www.dpcedcenter.org/opko-presents-additional-data-rayaldee%C2%AE-treat-secondary-hyperparathyroidism-chronic-kidney-disease
[2] http://www.bioportfolio.com/news/article/2663182/OPKO-Presents-Additional-Data-on-RAYALDEE-to-Treat-Secondary-Hyperparathyroidism-in-Chronic.html
[3] http://www.dpcedcenter.org/tags/chronic-kidney-disease