Experts who follow these stocks think they can fly higher despite already gaining over 100% since the end of July.Investors in search of stocks that can produce dramatic gains in a short time frame will want to turn their heads toward the healthcare sector. A handful of stocks in the space more than doubled in price recently.Shares of Precigen (PGEN -4.61%) and Mineralys Therapeutics (MLYS 5.07%) have already risen more than 100% since the end of July. Despite the recent run-ups, Wall Street experts who fol ...