Medical Properties (MPW) is one of the stocks most watched by Zacks.com visitors lately. So, it might be a good idea to review some of the factors that might affect the near-term performance of the stock.Over the past month, shares of this health care real estate investment trust have returned -6.4%, compared to the Zacks S&P 500 composite's +4.3% change. During this period, the Zacks REIT and Equity Trust - Other industry, which Medical Properties falls in, has gained 6%. The key question now is: What coul ...