Complex sentence: The hallmark sign of DMSA1 is diaphragmatic palsy and other symptoms include progressive symmetrical muscular weakness, muscle atrophy, autonomic nerve dysfunction and peripheral sensory neuropathy.
Split into simpler sentences: The hallmark sign of DMSA1 is diaphragmatic palsy. Other symptoms include progressive symmetrical muscular weakness, muscle atrophy, autonomic nerve dysfunction, and peripheral sensory neuropathy.