<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: Concentrations Of 6-Thioguanine Nucleotide And Use Of Oral Methotrexate In Patients With Inflammatory Bowel Diseases Correlate With A Better Pharmacokinectic Profile Of Infliximab But Not Of Vedolizumab Or Ustekinumab: The Results Of The Combo-Ibd Study[/INST] Yes</s>