De Palma G D, Rega M, Ciamarra P, Di Girolamo E, Patrone F, Mastantuono L, Simeoli I
Dept. of Surgery and Advanced Technologies, Diagnostic and Therapeutic Endoscopy Section, Federico II University School of Medicine, Naples, Italy.
Endoscopy. 2004 Nov;36(11):1039. doi: 10.1055/s-2004-825693.