Danish registry study of truncal (2,260) vs superselective (3,810) vagotomy (1977-95) vs general popul. (10:1). Truncal incr. RA risk (aHR 2.62), but selective did not (aHR 1.05. Neither had effect on OA risk https://t.co/dqejtN9TwY https://t.co/R0OJZTxd5T