<s>[INST] Given an abstract text, please determine whether it contains any drug mentions. Provide a 'Yes' or 'No' answer based on the presence or absence of drugs. Abstract Text: Tofacitinib Treatment Prevents Post-Operative Recurrence Of Crohn'S Disease Modeled By Ileocecal Resection In Hla-B27 Transgenic Rats.[/INST] Yes</s>