Pharmaceutical company Merck (NYSE:MRK) is often seen as a solid defensive play for investors looking for dividend-paying health care stocks. While this is one of the largest drugmakers in the world, there are still many issues that investors need to watch. In this video, health care analyst Max Macaluso runs down three areas investors must track in 2013. 

Max Macaluso, Ph.D. has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.