All isolation points must be valved to avoid forming dead legs in the system being passivated.
Ostracodes are small animals, most of which have a two valved shell.
Methods:There were 7 patients who had been performed a kind of right atrium to right ventricle connection with the flap of cryopreserved valved homopulmonary artery.
An apparatus for producing a strong current of air, as for sounding a pipe organ or increasing the draft to a fire, consisting of a flexible, valved air chamber that is contracted and expanded by pumping to force the air through a nozzle.
Color Doppler echocardiography is very important in structural and hemodynamic research of right ventricular outflow tract reconstruction with valved bovine jugular vein conduit in pulmonary atresia.