These are solid stocks that have all generated 10-year returns in excess of 200%.The S&P 500 has remained red hot, achieving gains of nearly 15% through the first six months of 2024. Healthcare stocks have performed well, but not nearly to the same extent -- the Healthcare Select Sector SPDR ETF has risen by 7% during the first half of this year.Healthcare stocks may not generate as much excitement as other growth stocks, but there are some solid options that you can buy and hold, not just for the second pa ...