Complex sentence: This study, the VIGOR trial, raised the issue of the cardiovascular safety of the coxibs-a statistically insignificant increase in the incidence of myocardial infarctions was observed in patients on rofecoxib.
Split into simpler sentences: This study, the VIGOR trial, raised the issue of the cardiovascular safety of the coxibs. A statistically insignificant increase in the incidence of myocardial infarctions was observed in patients on rofecoxib.