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12. Needleless local anesthesia for tube changes. Kerns S AJR Am J Roentgenol; 1995 Jan; 164(1):264. PubMed ID: 7998565 [No Abstract] [Full Text] [Related]
13. Use of a flexible, 22-gauge trocar needle and an obturator for obstructed drainage catheter exchange. McLellan GL AJR Am J Roentgenol; 1988 Sep; 151(3):521-2. PubMed ID: 3261512 [No Abstract] [Full Text] [Related]