J Comput Assist Tomogr. 1992 Sep-Oct; 16(5): 834-5.

Radiography, US, and CT of acupuncture needles in the abdominal organs.

Baek SY, Lee MG, Choi HY, Cho KS, Auh YH.

Department of Diagnostic Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.