A Single-Blind Randomized Controlled Trial Comparing the Efficacy of Two Doses of Oral Ibuprofen with Intravenous Indomethacin in Terms of Ductus Arteriosus Closure among Premature Infants with Patent Ductus Arteriosus: A Phase 2A Clinical Trial. (2013). Acta Medica Philippina, 46(4). https://doi.org/10.47895/amp.v47i1.2023