Effect of a selective monsteroidal anti-inflammatory inhibitor of cyclooxygenase-2 on the small bowel of rats - Leite, A. Z. A.; Sipahi, A. M.; Damiao, A. O. M. C.; Garcez, A. T.; Buchpiguel, Carlos Alberto; Lopaso, Fabio Pinatel; Lordello, M. L. L.; Agostinho, C. L. O.; Laudanna, Antônio Atílio (Brazilian Journal of Medical and Biological Research, 2004)