Back in early October of last year, I decided to revisit Select Medical Holdings Corporation (NYSE: SEM ), one of the largest operators of critical centers, rehabilitation hospitals, outpatient rehabilitation clinics, and occupational health centers in the US. ICrude Value Insights offers you an investing service and community focused on oil and natural gas. We focus on cash flow and the companies that generate it, leading to value and growth prospects with real potential.Subscribers get to use a 50+ stock ...