Nonresponsive CD is defined by persistent or recurrent sx despite GFD adherence These pts require a systematic w u to r o specific conditions esp unintentional gluten contamination that may cause persistent or recurrent sx

Nonresponsive CD is defined by persistent or recurrent sx despite GFD adherence. These pts require a systematic w/u to r/o specific conditions, esp. unintentional gluten contamination, that may cause persistent or recurrent sx.