<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: Efficacy And Safety Of Intravenous Ustekinumab Re-Induction Therapy In Crohn'S Disease Patients With Secondary Loss Of Response To Ustekinumab Maintenance Therapy:Week 16 Results From The Power Trial[/INST] Yes</s>