11.   By contrast, the NIH rules require immediate notification of adverse events.

12.   Frequently involved in adverse events was warfarin, a blood-thinning drug that many older people take to avoid clots.

13.   If we immunize tens or hundreds of thousands there will be serious adverse events, possibly even deaths.

14.   In addition, Collins and Isner said that henceforth research volunteers will be informed about previous adverse events or deaths of patients receiving the treatment.

15.   Infection was the most common cause of adverse events and death among the infants whose mothers took the two drugs.

16.   Nevertheless, if even a tiny percentage of the more than seven million patient encounters each day result in adverse events, a large number of patients may suffer.

17.   Recent studies have raised a cloud over such drugs, however, saying they may promote adverse cardiovascular events, gastrointestinal bleeding, and even colon cancer.

18.   Reports of adverse events are not considered proof that a drug causes the problem being reported, but the reports are routinely used as an indicator of potential trouble.

19.   Still, reports of adverse events in gene therapy arrive regularly at the NIH.

20.   The analysis also showed that the more serious adverse events were also the most preventible.