In my initial TransMedics Group, Inc. (NASDAQ: TMDX ) article, I shared back in January , I ventured into the healthcare sector with a 2-3% portfolio position in the stock drawn by its revolutionary Organ Care System (OCS) and vertically integrated logistics, which together create Nikolaos Sismanis holds a BSc in Banking and Finance and has over five years of experience as an equities analyst. He covers a variety of growth stocks and income stocks, including identifying those with the highest expected retur ...