title: Unusual cause of abdominal pain. Colon impaction with pebbles--geophagia.
authors: Pushpawati Singhania Research Institute for Liver, Renal and Digestive Diseases, New Delhi, India. khannasudeep@hotmail.com
authors: S
authors: S
authors: Khanna
authors: D
authors: D
authors: Chaudhary