PT - JOURNAL ARTICLE AU - Cavallini, G AU - Benini, L TI - Limitations of faecal chymotrypsin as a screening test. AID - 10.1136/gut.32.12.1570 DP - 1991 Dec 01 TA - Gut PG - 1570--1570 VI - 32 IP - 12 4099 - http://gut.bmj.com/content/32/12/1570.1.short 4100 - http://gut.bmj.com/content/32/12/1570.1.full SO - Gut1991 Dec 01; 32