Rasidi, C., Madiyono, B. and Usman, I. 1982. Indomethacin Therapy in Premature Infants with Patent Ductus Arteriosus. Paediatrica Indonesiana. 22, 3-4 (Apr. 1982), 70-6. DOI:https://doi.org/10.14238/pi22.3-4.1982.70-6.