4[1]Muller-Lissner SA. Adverse effects of laxatives: fact and fiction. Pharmacol ogy, 1993,47, (Suppl) 1:138.
5[2]Delmotte JS. Efficacite d' un laxatif osmotique, forlax chez des patients souf frant de constipation chronique opiniate(Encours de parution).
6[3]Wei MS, Satish SCR Manometric assessment of anorectal function. Gastroenterol Clin North Am, 2001,30( 1 ): 15.
7Wong ML, Wee S, Pin CH, et al, Sociodemographic and lifestyle factors associated with constipation in an elderly Asian community.Am J Gastroenterol,1999,4:1283-1291.
8Merke IS, locher J, Burgio K, et al. Physiologic and psychologic characteristics of elderly population with chronic constipation. Am J Gastroenteml, 1993,88:1854-1859.