31.   Critics of the wider availability of the spray, however, charge that the health effects of the spray have not been adequately studied.

32.   Despite the controversy, the health effects of DEHP remain hotly debated.

33.   Dina Vizzaccaro, lobbyist for the American Automobile Manufacturers Association, said the health effects of smog and dust need more study before current rules are changed.

34.   During that time, more scientific studies of the health effects will be conducted.

35.   Europe has long argued that there can be long-term health effects to treating beef with hormones, and that the effects may not be known for years.

36.   Early studies of the potential health effects of portable cellular telephones show no evidence of an increase in death rates among users, researchers said Wednesday.

37.   Even low levels of the chemicals in water can have health effects, as studies have shown.

38.   Experts say modifed foods are too new for long-term health effects to have appeared in people who eat them.

39.   Even the long-term health effects might be relatively minor.

40.   For years the EPA has fought to prevent the sale of the additive until after further tests of its possible health effects.