Greatest Loss of Motor Skills at Ages 5 to 13 in SMA Type 2, Study Shows
People with type 2 spinal muscular atrophy (SMA) show the greatest loss of motor abilities on the Hammersmith Functional Motor Scale Expanded (HFMSE) between the ages of 5 and 13, and the greatest gains in those age 4 or younger, according to a recent natural history study. The…