1. Influence of arm position on catheter placement during real-time ultrasound-guided right infraclavicular proximal axillary venous catheterization†  
J.H. Ahn, I.S. Kim, K.M. Shin, S.S. Kang, S.J. Hong, J.H. Park, H.J. Kim, S.H. Lee, D.Y. Kim, J.H. Jung 
British Journal of Anaesthesia 
Volume 116, Issue 3, Pages (March 2016)
DOI: /bja/aev345
Copyright © 2016 The Author(s) Terms and Conditions

2. Fig 1 Consort flow diagram.
British Journal of Anaesthesia  , DOI: ( /bja/aev345)
Copyright © 2016 The Author(s) Terms and Conditions

3. Fig 2
Longitudinal ultrasound image in the neutral position. The diameter of the vein is not even from the medial to the lateral side, and the posterior wall of the vein is not parallel to the anterior wall in the lateral side. A, artery; C, clavicle; V, vein.
British Journal of Anaesthesia  , DOI: ( /bja/aev345)
Copyright © 2016 The Author(s) Terms and Conditions

4. Fig 3
Longitudinal ultrasound image in the position with the arm abducted at 90°. The diameter of the vein is more even at both sides, and the posterior wall of the vein and its pathway are parallel to the anterior wall. A, artery; C, clavicle; V, vein.
British Journal of Anaesthesia  , DOI: ( /bja/aev345)
Copyright © 2016 The Author(s) Terms and Conditions