Arman, D., Sancak, S., Gursoy, T., Topcuoglu, S., Karatekin, G. & Ovali, F. (2020) The association between NIRS and Doppler ultrasonography in preterm infants with patent ductus arteriosus. JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE , 33(7), 1245-1252.