31.   Also, the reason why only a small proportion of subjects with this common infection develop duodenal ulceration is unclear.

32.   The presence of M paratuberculosis in a small proportion of apparently normal colons suggested a previously unexpected alimentary prevalence of this animal pathogen in the human population.

33.   Only a small proportion of our patients could and would participate in the study.

34.   In a small proportion of patients, intravenous bretylium or amiodarone may be necessary to suppress recurrent unstable ventricular arrhythmias.

35.   In general only a very small proportion moved much after their twenties.

36.   Such people are likely to be a very small proportion of the first generation Caribbean community in London.

37.   Right again, horticulture is another enterprise where fixed costs only represent a quite small proportion of total costs.

38.   In most island arcs only a relatively small proportion of the individual volcanoes actually rise above sea level.

39.   Traditionally archives such as the PRO have only selected a small proportion of the records produced in departments for permanent preservation.

40.   A very small proportion of cigarette smokers develop lung cancer, but almost all people with lung cancer are or have been smokers.