nayana-c1.867c992ae9100904cc61c84591adf0f8f863e0387e30f0d0dbc86640e9f50a1a.en.train.281404

The task

Which study discusses the use of needle-free anesthesia for botulinum toxin type A injection in hyperhidrosis? A. Barolet D, Benohanian A. Current trends in needle-free jet injection: An update. Clin Cosmet Investig Dermatol 2018;11:231-238. B. Benohanian A. Needle-free anaesthesia prior to botulinum toxin type A injection treatment of palmar and plantar hyperhidrosis. Br J Dermatol 2007;156(3):593-596. C. Artzi O. Needle-free administration of botulinum toxin for primary focal hyperhidrosis: Initial experience. Clin Dermatol J 2017;2(6):000131. D. Benohanian A. Surgical pearl: Use of needle-free anesthesia in the treatment of palmar hyperhidrosis with botulinum A toxin. J Am Acad Dermatol 2005;52(6):1073-1074. Return only the single uppercase letter of the correct option.