Additional file 1: of Prevention of vitamin D deficiency in children following cardiac surgery: study protocol for a randomized controlled trial J. McNally Katie O’Hearn Margaret Lawson Gyaandeo Maharajh Pavel Geier Hope Weiler Stephanie Redpath Lauralyn McIntyre Dean Fergusson Kusum Menon 10.6084/m9.figshare.c.3604313_D1.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Prevention_of_vitamin_D_deficiency_in_children_following_cardiac_surgery_study_protocol_for_a_randomized_controlled_trial/4342283 SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents*. Study: Prevention of vitamin D deficiency in children following cardiac surgery: a study protocol for a randomized dose evaluation trial. (DOC 122 kb) 2015-09-09 05:00:00 vitamin D pediatrics congenital heart disease randomized controlled trial