Observational Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Feb 7, 2015; 21(5): 1614-1620
Published online Feb 7, 2015. doi: 10.3748/wjg.v21.i5.1614
Table 3 Relationship between normal and low serum retinol levels and negative and positive relative dose response test results in Crohn's disease patients and controls
Serum retinol levelsRDR test
Negative
Positive
CDCTCDCT
Normal222850
Low2194
Total2429144