[ Ссылка ] - This tutorial explores the valves of the heart in two cross sections and describes the mechanism of their function. For more entirely FREE medical tutorials, visit [ Ссылка ]
![](https://i.ytimg.com/vi/4Go0hhBP_aw/maxresdefault.jpg)
[ Ссылка ] - This tutorial explores the valves of the heart in two cross sections and describes the mechanism of their function. For more entirely FREE medical tutorials, visit [ Ссылка ]