Needle knife papillotomy: how safe and how effective?
Dowsett JF, Polydorou AA, Vaira D, D'Anna LM, Ashraf M, Croker J, Salmon PR, Russell RC, Hatfield AR.
Dowsett JF, et al. Among authors: russell rc.
Gut. 1990 Aug;31(8):905-8. doi: 10.1136/gut.31.8.905.
Gut. 1990.
PMID: 2387515
Free PMC article.