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Kelly RE Jr, Phillips JD, Foglia RP, Bjerke HS, Barcliff LT, Petrus L, Hall TR.Kelly RE Jr, et al. Among authors: bjerke hs.J Pediatr Surg. 1991 Sep;26(9):1016-22. doi: 10.1016/0022-3468(91)90665-g.J Pediatr Surg. 1991.PMID: 1941476