1 Department of Oncology, McGill University, Montreal, Canada; Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Canada. Electronic address: [email protected].
2 Department of Oncology, McGill University, Montreal, Canada.
3 Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, USA.
4 Department of Oncology, McGill University, Montreal, Canada; Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Canada.