The 1960 Olympic road cycling race in Rome was marred by the death of Denmark's Knut Enemark, who collapsed from sunstroke in the 100 plus degrees heat and suffered a fractured skull. It was later revealed that before the race Enemark had taken Ronicol, a blood circulation stimulant. But the three Italian physicians who performed the autopsy submitted a final report claiming Jensen's death was caused by heatstroke, and no drugs were found in his body. Years later, Alvaro Marchiori, one of the doctors who conducted the autopsy, claimed they had "found traces of several things", including amphetamines. Jensen's death led the International Olympic Committee to form a medical committee in 1961 and drugs testing at the 1968 Winter Olympics in Grenoble.