Global Beta Thalassemia Market Assessment, By Type [Beta Thalassemia Minor, Beta Thalassemia Intermedia, Beta Thalassemia Major], By Therapy [Blood Transfusions, Iron Chelation Therapy, Folic Acid Supplements, Gene Therapy, Bone Marrow Transplants], By Distribution Channel [Hospital Pharmacies, Retail Pharmacies, Online Pharmacies], By Region, Opportunities and Forecast, 2017-2031F