Chan, A O O Targeted treatment for functional constipation. [electronic resource] - Hong Kong medical journal = Xianggang yi xue za zhi Dec 2006 - 408-9 p. digital Publication Type: Editorial; Comment ISSN: 1024-2708 Subjects--Topical Terms: Biofeedback, PsychologyConstipation--etiologyDietary Fiber--administration & dosageHumansPatient Education as Topic