Table 1 Patients' data.

Patient	Condition	Sex	Age (years)	Bowel actions (number/day)	Duration of symptoms (months)	Medications
1	Lymphocytic	Female	65	1	1.5	Nil
2	Lymphocytic	Male	92	12	2.5	Nil
3	Lymphocytic	Female	62	1	1	Loperamide
4	Lymphocytic	Female	63	6	4.5	Nil
5	Lymphocytic	Male	63	3	3	Loperamide
6	Lymphocytic	Female	76	8	3.5	Nil
7	Lymphocytic	Female	64	1	2.5	Nil
8	Lymphocytic	Male	90	4	8	Loperamide
9	Collagenous	Female	57	10	3	Nil
10	Collagenous	Female	67	1	4	Methotrexate
11	Collagenous	Male	89	6	3	Nil
12	Collagenous	Female	53	3	2	Sulphasalasine
13	Collagenous	Male	86	6	4	Nil
14	Collagenous	Female	82	6	4	Nil
15	Collagenous	Female	58	2	2	Nil
16	Collagenous	Female	74	5	2	Nil
17	Collagenous	Female	78	6	8 years	Prednisolone
18	Collagenous	Female	72	13	4	Nil