Investors looking for stocks in the Medical Services sector might want to consider either Icon PLC (ICLR) or Charles River Laboratories (CRL) . But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look.We have found that the best way to discover great value opportunities is to pair a strong Zacks Rank with a great grade in the Value category of our Style Scores system. The proven Zacks Rank puts an emphasis on earnings estimates and estimate revis ...