N Hovdenak, W R Lees, J Pereira, J O Beilby, P B Cotton
Hovdenak N, Lees W R, Pereira J, Beilby J O, Cotton P B.
Ultrasound-guided percutaneous fine-needle aspiration cytology in pancreatic cancer.
Br Med J (Clin Res Ed) 1982; 285 :1183
doi:10.1136/bmj.285.6349.1183