[The Latin-American Consensus on Chronic Constipation].
Schmulson Wasserman M, Francisconi C, Olden K, Aguilar Paíz L, Bustos-Fernández L, Cohen H, Passos MC, González-Martínez MA, Iade B, Iantorno G, et al. Gastroenterol Hepatol. 2008 Feb; 31(2):59-74.