The researchers cautioned that the study was done in only one type of cancer, and that more research is needed to see how much genetic variation there is in other types of tumors.

WSJ: 'Personalized Medicine' Hits a Bump

"I would call this a Bill Buckner type of study, " says Robert Califf, vice chairman for clinical research at Duke University who is leading a big study of Zetia and takes the drug himself.

FORBES: Magazine Article

Given that the association between diet drinks and with vascular events is unexpected and unsupported by other research, a study that controlled for specific ingredients, such as the type of sweetener and caffeine content, is needed to assess whether there are grounds for a plausible mode of action.

FORBES: Will Drinking Diet Soda Increase Your Risk For A Heart Attack?