Russell KF, Liang Y, O'Gorman K, Johnson DW, Klassen TP (). Klassen, Terry P, ed. „Glucocorticoids for croup”. Cochrane Database Syst Rev. 1 (1): CD001955. doi:10.1002/14651858.CD001955.pub3. PMID21249651.Mentenanță CS1: Nume multiple: lista autorilor (link)
Port C (). „Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. BET 4. Dose of dexamethasone in croup”. Emerg Med J. 26 (4): 291–2. doi:10.1136/emj.2009.072090. PMID19307398.
Russell KF, Liang Y, O'Gorman K, Johnson DW, Klassen TP (). Klassen, Terry P, ed. „Glucocorticoids for croup”. Cochrane Database Syst Rev. 1 (1): CD001955. doi:10.1002/14651858.CD001955.pub3. PMID21249651.Mentenanță CS1: Nume multiple: lista autorilor (link)
Port C (). „Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. BET 4. Dose of dexamethasone in croup”. Emerg Med J. 26 (4): 291–2. doi:10.1136/emj.2009.072090. PMID19307398.