Spinal Muscular Atrophy Treatment Market Size, Share & Trends Analysis Report By SMA Type (Severe (type I, severe SMA or Werdnig-Hoffmann disease), Intermediate (type II or chronic SMA), Mild (type III, juvenile SMA or Kugelberg-Welander disease), Type IV (adult SMA)), By Treatment (Gene Therapy, Drugs, Medication, Physical Therapy, Surgery, Others), By Route of Administration (Oral, Intrathecal, Paranteral), By Drug (Nusinersen, Onasemnogene, Abeparvovec, Others), By Administration (Intrathecal, Intraspinal, Subcutaneous, Others), By Distribution Channel (Hospital Pharmacy, Retail Pharmacy, Online Pharmacy), By End User (Hospitals, Homecare, Specialty Clinics, Others) and By Region (North America, Europe, APAC, Middle East and Africa, LATAM) Forecasts, 2026-2034