61.   The study links growing soda consumption to rising obesity rates.

62.   The study also linked environmental tobacco smoke to low birthweight babies, asthma and other respiratory problems.

63.   Two recent Harvard studies have linked diets high in sugars and refined starches to an increased risk of developing diabetes.

64.   Two studies linked neurotoxic effects like delays in mental development to chronic exposure to fish and marine animals with high levels of methyl mercury.

65.   Other recent studies have linked large-scale climate changes to population fluctuations in American songbirds and European butterflies.

66.   Other studies have linked breast-feeding with similar benefits and a host of others, including fewer earaches, colds and asthma.

67.   An earlier study also linked the hormones to a modest increase in ovarian cancer risk.

68.   Another study has linked good health with religion.

69.   In recent years, studies have linked them to the deaths of thousands of Californians.

70.   It was pulled off the market in September of that year, after a Mayo Clinic study linked fen-phen to potentially fatal heart valve damage.