Former cycling doper turned whistleblower Tyler Hamilton described Dr Eufemiano Fuentes as a "one-man Wal-Mart of doping" in his 2012 book The Secret Race, which detailed the use of performance-enhancing drugs in the sport.
Hamilton was among 11 former teammates who testified against Lance Armstrong during the US Anti-Doping Agency's investigation.
In his only UK interview, he gave ITV News his reaction to Armstrong finally confessing.
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According to the poll, conducted for The Irish Times, the country chose to liberalise its laws by 68% to 32%.
More than one in 10 people will be classed as such in Wales, according to the report.
The first lady spent five nights in hospital.