TY - RPRT TI - Flexible upper tract endoscopy. AU - A J Troy AU - T Anagnostou AU - D A Tolley PY - 2004 DO - 10.1111/j.1464-410x.2003.04693.x UR - https://pubmed.ncbi.nlm.nih.gov/15009087/ ID - 15009087 ER -