21.   Although some scientific studies have proved the benefits of manipulative therapy for spine problems, evidence that it helps other diseases is sparse.

22.   Although there are no scientific studies linking the increase in sugar consumption to the increase in obesity, researchers believe there is a connection.

23.   And adding my records to a national database would facilitate scientific studies to improve the health of the whole society.

24.   An unrelated scientific study by Dr. Keith McBurnett of the University of Chicago reports that mean, violent and disruptive boys can be identified by analyzing their saliva.

25.   An independent scientific study has found that the use of ammonia by tobacco companies can dramatically increase the level of nicotine available to smokers.

26.   And even if an herbal product has been reliably made in some standard dose, it does not mean that scientific studies have shown it to be effective.

27.   And he says the new limits on arsenic looked arbitrary and insufficiently supported by scientific study.

28.   And that in itself should be a subject of scientific study.

29.   And Stratton said it was common practice for state agencies to share scientific studies.

30.   And regardless of scientific studies, the egg industry tends to move in predictable cycles, year after year.