Table 1: Clinical characteristics of case patients.

Clinical Characteristics
Case Patient Age of Admission (days) Birth Weight (g) Gestational Age (wk) Comorbidity Evolution Others
1 1 2250 35 - Death -
2 1 1000 30 Patent ductus arteriosus Death Twin pregnancies
3 3 2600 33 - Death -
4 1 1650 35 - Favorable Twin pregnancies
5 10 3100 37 - Favorable -