Reply to: modified first-targeted ultrasound window for selective brachial plexus trunk block may reduce the incidence of hemi-diaphragmatic paralysis.

From the The Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China Correspondence to Manoj Kumar Karmakar, MD, FRCA, Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, 4/F, Main Clinical Block and Trauma Centre, Prince of Wales Hospital, 30–32 Ngan Shing Street, Shatin, New Territories, Hong Kong, SAR, China. Tel: +852 3505 2735; fax: +852 3505 2422; e-mail: [email protected]