Upping the "ant-e" on endoscopic ant sightings.
Boardman
Charles R
CR
Portland Veterans Affairs Medical Center, Portland, Oregon, USA.
Sonnenberg
Amnon
A
D000368:Aged; D000818:Animals; D001000:Ants; D003106:Colon; D003113:Colonoscopy; D005547:Foreign Bodies / Q000175:diagnosis*; D006801:Humans; D008297:Male