RT Book, Section A1 Hay, Jr, William W. A1 Levin, Myron J. A1 Deterding, Robin R. A1 Abzug, Mark J. SR Print(0) ID 1145458734 T1 Spinal Muscular Atrophy (SMA) T2 Quick Medical Diagnosis & Treatment Pediatrics YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781264257614 LK accesspediatrics.mhmedical.com/content.aspx?aid=1145458734 RD 2024/04/19 AB An autosomal recessive neuromuscular disorderDegeneration of anterior horn cells in the spinal cord, leading to progressive atrophy of skeletal muscleIncidence is approximately 1 in 12,000, with the majority of the cases presenting in infancyCarrier frequencies approach 1 in 40 in populations with European ancestry