21.   Large cohort studies have indicated that one such group consists of patients who have had previous vagotomy for benign peptic ulcer disease.

22.   The physiological and pharmacological studies of ENS indicate that there are at least two types of reflexes in this part of the autonomic nervous system.

23.   Molecular studies indicate that this receptor is expressed at low levels only in normal adult hepatocytes but that expression is increased in hepatoma cells for foetal hepatocytes.

24.   Longitudinal studies indicate that the condition affects people over long periods of their lives yet there is no evidence that they are at risk of any serious organic disease.

25.   However, not all studies indicate a high rate of obsessive-compulsive disorder among anorexia nervosa patients.

26.   Several recent studies have indicated the significant role played by displaced terranes in the morphology and structure of both intercontinental collision orogens and continental-margin orogens.

27.   Although the Radius study indicates that early detection of most abnormalities does not do much good anyway, doctors end up screening just to cover their afts.

28.   Although there are no hard numbers, studies indicate that domestic violence may be more widespread in police families than in the general population.

29.   And the study indicated that phones that a driver could use with both hands free were no less dangerous than phones that had to be held.

30.   And nationally, studies have indicated that HIV infection rates are increasing among young gay men.