This study, led by Prof. Donald Maurice of Queen's College focused on the relationship between Viagra and the levels of PDE5 inhibition in cells.

本研究由Queen ' s College的Donald Maurice教授领导，其研究的焦点问题就是：在细胞内伟哥和PDE5被抑制的水平的之间的关系。

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But Professor Peter Sever, of the National Heart and Lung Institute at Imperial College London, said there were already effective drugs for heart failure and that Viagra's action was not unique.

BBC: NEWS | Health | Viagra could treat failing hearts