Additional file 1: of Determining the impact of 24/7 phone support on hospital readmissions after aortic valve replacement surgery (the AVRre study): study protocol for a randomised controlled trial Irene Lie Stein Danielsen Theis Tønnessen Svein Solheim Marit Leegaard Leiv Sandvik Torbjørn Wisløff Jonny Vangen Tor Røsstad Philip Moons 10.6084/m9.figshare.c.3790942_D1.v2 https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Determining_the_impact_of_24_7_phone_support_on_hospital_readmissions_after_aortic_valve_replacement_surgery_the_AVRre_study_study_protocol_for_a_randomised_controlled_trial/5052112 SPIRIT 2013 checklist: recommended items to address in a clinical trial protocol. (DOC 122 kb) 2017-05-30 05:00:00 Thoracic surgery Patient readmission Clinical trial