<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: Local Peri-Fistula Injection Of A Novel Placenta-Derived Cell Is A Safe And Promising Treatment For Refractory Complex Fistulizing Perianal Crohn'S Disease: A Phase I Open Label Study[/INST] Yes</s>