This article presents common misconceptions about the physiologic significance of early ductal shunting and reviews the evidence regarding the preferential use of echocardiography rather than ...

The Show 5 makes for a meaningful upgrade if you already own a dedicated Echo speaker. Although it only has a 5.5-inch screen, the Alexa-enabled smart display can still function as your primary ...

Except it’s even more complex than that… In its patent illustrations, Porsche has shown a ‘scavenging’ phase between the first expansion and second compression as the unusual crankshaft ...