Drupal-Bibcite0<style face="normal" font="default" size="100%">Efficacy and safety of oral doxercalciferol in the management of secondary hyperparathyroidism in chronic kidney disease stage 4.</style><style face="normal" font="default" size="100%">Efficacy and safety of oral doxercalciferol in the management of secondary hyperparathyroidism in chronic kidney disease stage 4.</style>