PT  - JOURNAL ARTICLE
ED  - ,
TI  - Endoscopy free papers 140–149
AID  - 10.1136/gut.50.suppl_2.a39
DP  - 2002 Apr 01
TA  - Gut
PG  - a39--A42
VI  - 50
IP  - suppl 2
4099  - http://gut.bmj.com/content/50/suppl_2/a39.short
4100  - http://gut.bmj.com/content/50/suppl_2/a39.full
SO  - Gut2002 Apr 01; 50