1.   The population growth study took into account both accessibility and the impact of planning policies, including constraints such as green belts.

2.   Epidemiological data based upon population studies have indicated a positive association between dietary cholesterol and colorectal cancer.

3.   Population studies of gastric acid secretion in children at risk from undernutrition are clearly not possible using conventional intubation techniques.

4.   We have therefore compared a group of coal miners and an age and sex matched group of subjects selected from the members of a general population screening study.

5.   The patient sample therefore resembles that of a population based study.

6.   Associations between diseases can be established only by population based studies.

7.   One recent population study found that depression did not precede the eating disorder, although it did correlate with onset.