In 1998, two former Northwestern basketb<answer>all</answer> players were charged and convicted for sports bribery as a result of being paid to shave points in games against three other Big Ten schools during the 1995 season. The footb<answer>all</answer> team became embroiled in a different betting scandal later that year when federal prosecutors indicted four former players for perjury related to betting on their own games. In August 2001, Rashidi Wheeler, a senior safety, collapsed and died during practice from an asthma attack. An autopsy revealed that he had ephedrine, a stimulant banned by the NCAA, in his system, which prompted Northwestern to investigate the prevalence of stimulants and other banned substances across <answer>all</answer> of its athletic programs. In 2006, the Northwestern women's soccer team was suspended and coach Jenny Haigh resigned following the release of images of <answer>all</answer>eged hazing.
After the death of Rashidi Wheeler in 2001, which athletic programs were investigated for stimulants and other banned substances?
all