<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: Compared Efficacy Of Ustekinumab And Anti-Tnf Agents As First-Line Biological Therapy In Luminal Crohn'S Disease: A Two-Center Retrospective Study.[/INST] Yes</s>