ISLAMABAD: Spinal muscular atrophy (SMA) is an inherited disease that affects nerves and muscles, causing muscles to become increasingly weak. It mostly affects infants and children but can also develop in adults. Symptoms and prognosis vary depending on SMA type. Approximately 10,000 to 25,000 children and adults are living with SMA in the United States. … Continue reading SMA, a neuro-muscular disorder leading towards everlasting disability