Cartwright MS, Griffin LP, Dowlen H, Bargoil JM, Caress JB, Li ZJ, Defranzo AJ, Wiesler ER, Tuohy CJ, Balakrishnan N, Molnar JA, Baute V, Koman LA, Poehling GG, Walker FO. A randomized trial of diagnostic ultrasound to improve outcomes in focal neuropathies. Muscle Nerve. 2015 Nov; 52(5):746-53.