<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: Ultrasound-Guided Needle Biopsy Fluorescence Spectroscopy With Quantitative Fluorescence Endoscopy For Response Monitoring In Patients With Esophageal Cancer After Neoadjuvant Chemoradiotherapy Using Bevacizumab-800Cw[/INST] Yes</s>