Our results reveal that <i>Rhodiola rosea</i> <b><i>is worthy of continued study</i></b>, and we are now investigating why this herb works to increase lifespan<br/><br/>Can I say <b><i>is worth continuing study</i></b> instead of the bold part in the above sentence?<br/><br/>(<i>Rhodiola rosea</i>:<i> </i>a yellow-flowered plant from mountainous parts of Asia)<br/><br/>Thanks<br/>LiJ