The Comparison Between Intravenous Acetaminophen Versus Oral Ibuprofen in Preterm Newborns With Patent Ductus Arteriosus: A Clinical Trial - Ahranjani, Behzad; Dalili, Hosein; Nashtifani, Zeinab; Shariat, Mamak; Khorgami, Mohammadrafie (Acta Medica Iranica, 2021)