Bugno , who won the Giro d'Italia in 1990 and two successive world titles , was banned for three months in 1994 after testing positive for the stimulant caffeine .
<response> <person>Bugno</person> , who won the <misc>Giro d'Italia</misc> in 1990 and two successive world titles , was banned for three months in 1994 after testing positive for the stimulant caffeine . </response>