Transient systolic murmurs in neonates and premature infants due to mild left (LPA) and right (RPA) pulmonary branch stenosis is recognized but follow up studies are lacking. A total of 32 neonates with murmur and 32 controls were evaluated echocardiographically at baseline and in four months follow up. Diameters of LPA and RPA were smaller in patients with murmur. https://www.roneverhart.com/Knesko-Lip-Mask-Amethyst-Hydrate-Six-Treatments/