<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: A Preliminary Randomized, Double-Blind, Placebo-Controlled Trial On The Safety And Efficacy Of Human Bone-Marrow Derived Clonal Mesenchymal Stem Cells For Moderately Severe To Severe Acute Pancreatitis[/INST] Yes</s>