Aggarwal, Divya Varicella zoster exposure in patients with inflammatory bowel disease--recall is not enough. [electronic resource] - The American journal of gastroenterology Mar 2014 - 448-9 p. digital Publication Type: Letter; Comment ISSN: 1572-0241 Standard No.: 10.1038/ajg.2013.378 doi Subjects--Topical Terms: Anti-Inflammatory Agents--adverse effectsAntibodies, Monoclonal--adverse effectsHumansInflammatory Bowel Diseases--drug therapyOpportunistic Infections--chemically inducedTumor Necrosis Factor-alpha--antagonists & inhibitors