Lista, G., Bianchi, S., Mannarino, S., Schena, F., Castoldi, F., Stronati, M., & Mosca, F. (2016). Velocity time integral for right upper pulmonary vein in VLBW infants with patent ductus arteriosus .
Clinics,
71(10), 580-585.
https://doi.org/10.6061/clinics/2016(10)05