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[키워드] 1:1 24 hour 24 hours Admission age allergy ambient and vitamin D anticonvulsants assessment Asthma Blinding block Blood body mass body mass index breathing ambient air calcium cardiovascular cardiovascular disease carried charge childbearing childbearing age cholecalciferol chronic Chronic kidney disease clinical clinical complications clinical outcomes comparator Complete Complication computer-generated Contact COPD coronary artery bypass grafting country COVID-19 COVID-19 patient COVID-19 patients criteria current death diabete diabetes discharge discretion disease dissemination dose double-blind Effect element enrolled evaluate exclusion exclusion criteria failure first stage FIVE gel Gender grafting Haemodialysis High dose history hospital Hospital admission hospital discharge Hospitalization hypercalcemia hypertension IMPROVE include inclusion criteria Infection Informed consent initiated Intervention invasive invasive or non-invasive ventilation investigator investigator-initiated investigators Kidney disease Life expectancy liver malabsorption management matching placebo mechanical ventilation medication moderate multicentre Myocardial infarction Non-invasive non-invasive ventilation number objective occur Occurrence oral cholecalciferol oral intake Organ failure outcome oxygen oxygen saturation Oxygenation packaged pandemic PaO participant Patient patients performed Pharmacist pharmacological physiological effects Placebo placebo-controlled clinical trial Pneumonia Pragmatic Prevent Primary outcome protocol pulse oximetry random randomised randomised controlled trial randomization randomization ratio Randomized recorded recruited recruitment Registered reported Requirement researcher respiratory Respiratory outcome respiratory outcomes risk routine clinical practice RT-PCR Sample size sarcoidosis SARS-CoV-2 Sepsis sequence sequential design serum calcium Seven stages Standard status stratified study drug study medication Study protocol subject supplementary material total sample size Treatment Trial Trial registration Two-arm valve replacement variable Vitamin D Vitamin D supplementation was used website
[DOI] 10.1186/s13063-021-05073-3 PMC 바로가기 [Article Type] Letter