The following video is part of our "Motley Fool Conversations" series, in which health-care editor/analyst David Williamson discusses topics around the investing world.

In this series, David takes a look at three health-care stocks that have doubled and examines whether they can keep it going for the rest of the year. Today's edition features Omeros, with its PharmacoSurgery program, Amylin, which has apparently no shortage of Big Pharma suitors, and Regeneron, after its successful launch of Eylea. Can these stocks keep running? Watch and find out.

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