The claim that gallbladder removal alters the pattern of bile flow into the small intestine is a physiological truism based on the gallbladder's normal function of storing and concentrating bile and releasing it in response to meals; once removed, bile flows continuously into the intestine rather than intermittently.
The claim states that gallbladder removal (cholecystectomy) alters the pattern of bile flow into the small intestine. Anatomically and physiologically, the gallbladder stores and concentrates hepatic bile, releasing boluses into the small intestine postprandially. Without a gallbladder, bile drips continuously into the small intestine. This is a basic, well-established physiological fact of human digestion and does not require specific citation of papers to verify.