Livaditis' circular myotomy does not decrease anastomotic leak rates and induces deleterious changes in anastomotic healing - Tannuri, U.; Teodoro, W. R.; Witzel, S. de Santana; Tannuri, A. C. A.; Lupinacci, R. M.; Matsunaga, P.; Matsumura, N.; Naufal, R. R. (European Journal of Pediatric Surgery, 2003)