These healthcare stocks offer completely different approaches to long-term investment gains. Your long-term investment portfolio should have meaningful exposure to healthcare stocks. People will always seek treatments for disease, so demand for the sector won't go away any time soon. Moreover, there's a wide variety of healthcare companies, making it an attractive sector for any type of investor. Consider how this value stock and this growth stock below might enhance your portfolio. 1. Pfizer Pfizer (PFE -0 ...