Kretsu , Natalia, et al. “CLINICAL-ANAMNESTIC AND ECHOCARDIOGRAPHIC MARKERS OF NEONATAL SEPSIS AT DIFFERENT GESTATION AGE OF NEWBORN”. The Ukrainian Scientific Medical Youth Journal, vol. 4, no. 127, Dec. 2021, pp. 107-15, doi:10.32345/USMYJ.127(4).2021.107-115.