WHO’D A THOUGHT the day would come when stem-cell therapy would be used to improve the healing of tendon and suspensory ligament injuries in horses? I had the privilege of learning more about it through Sequim’s Neon Rider 4-H club member Ruby Coulson when I interviewed her after placing third in the Individual Presentation Contest for her slide-show performance on “Equine Regenerative Therapies” at the Eastern National 4-H event held in Louisville, Kentucky Nov. 4-6.