Ravi Keshari 2023. EVALUATION OF MALIGNANT BILIARY TRACT STRICTURES WITH ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY GUIDED BRUSH CYTOLOGY. Journal of Population Therapeutics and Clinical Pharmacology. 30, 17 (Aug. 2023), 527–534. DOI:https://doi.org/10.53555/jptcp.v30i17.2478.