Cruz-Arámbulo , Robert, Wrigley, Robert (Feb 2003), Ultrasonography of the acute abdomen, Clinical Techniques in Small Animal Practice, Volume 18, Issue 1, Pages 20-31 | Cruz-Arámbulo , Robert, Wrigley, Robert (Feb 2003), Ultrasonography of the acute abdomen, Clinical Techniques in Small Animal Practice, Volume 18, Issue 1, Pages 20-31 |