title: Authors' response.
authors.affiliation: *Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital †Dana-Farber/Boston Children's Cancer and Blood Disorders Center Hematology Clinic, Boston, MA.
authors.forename: Naamah L
authors.initials: NL
authors.lastname: Zitomersky
authors.forename: Cameron C
authors.initials: CC
authors.lastname: Trenor
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use*; D003092:Colitis / Q000150:complications*; D005260:Female; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000150:complications*; D008297:Male; D011655:Pulmonary Embolism / Q000209:etiology*; D013923:Thromboembolism / Q000209:etiology*; D013927:Thrombosis / Q000209:etiology*
chemical_list: D000925:Anticoagulants