Azoulay L, Filion KB, Platt RW, Dahl M, Dormuth CR, Clemens KK, Durand M, Hu N, Juurlink DN, Paterson JM, Targownik LE, Turin TC, Ernst P, Suissa S, Hemmelgarn BR, Teare GF, Caetano P, Chateau D, Henry DA, LeLorier J, Levy AR, Sketris IS; Canadian Network for Observational Drug Effect Studies (CNODES) Investigators. JAMA Intern Med. 2016; 315(20):2211-20. Epub 2016 May 24.