Chaoulli v Quebec (AG) [2005] 1 S.C.R. 791, 2005 SCC 35, was a decision by the Supreme Court of Canada of which the Court ruled that the Quebec Health Insurance Act and the Hospital Insurance Act prohibiting private medical insurance in the face of long wait times violated the Quebec Charter of Human Rights and Freedoms.
https://en.m.wikipedia.org/wiki/Chaoulli_v_Quebec_(AG)