text: Diagnostic study of choice for<unk>  is ROME III criteria. Rome III criteria includes symptom onset for more than 6 months and two or more number of specific symptoms. Specific symptoms of<unk>  include straining, hard stool, sensation of incomplete evacuation, sensation of obstruction, necessity of manual maneuvers, less than 3 bowel movements per week, lack of loose stool, and lack of irritable bowel syndrome (IBS).
option_0: Constipation diagnostic study of choice
option_1: Steatorrhea diagnostic study of choice
option_2: Irritable bowel syndrome diagnostic study of choice
option_3: Epistaxis diagnostic study of choice
option_4: Chronic diarrhea differential diagnosis
option_5: Constipation other diagnostic studies
option_6: Lactose intolerance diagnostic study of choice
option_7: Meckel's diverticulum diagnostic study of choice