Task: Answer Verification
Input (English): Question: Do wedge and needle liver biopsies show discordant histopathology in morbidly obese patients undergoing Roux-en-Y gastric bypass surgery?
Answer: Wedge biopsy pairs had the best Kappa concordance but contralateral needle/needle biopsy pairs had good Kappa concordance. There were no complications from the 40 needle- and wedge liver biopsies, confirming the safety of laporoscopic multi-biopsy in both liver lobes.
Output (English): yes